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Harbour Secure Collection

Secure Boxer Short

Secure Boxer Short

£22.99 GBP
£26.99 GBP £22.99 GBP
Sale Sold out
Taxes included. Shipping calculated at checkout.
Colour
Size
  • Leakproof Protection
  • Ultra-soft Comfort
  • Washable & Reusable

Fabric & Care

Composition:

  • Lining: 95% cotton, 5% elastane
  • Body: 95% cotton, 5% elastane.
  • Absorption Area: 80% polyester, 20% elastane.
  • Breathable TPU barrier.

Your skin only touches the Lining directly.

How to Use

For the best comfort and protection, we recommend changing your period underwear every 6–8 hours (or more often on heavier days). They’re designed to support you through busy workdays, slow evenings, and restful nights alike.

To keep your underwear fresh and long-lasting, follow these simple care steps:

  1. Rinse first in cold water after use.
  2. Machine wash below 30°C
  3. Gently reshape while damp for the perfect fit.
  4. Hang to dry - avoid the tumble dryer to protect the materials.

That’s it! Simple, sustainable care for lasting comfort.

Absorbency & Protection

Harbour Secure Range - high absorbency - ideal for heavy flow or overnight wear.

Absorbency equivalent of roughly 12 tampons, or roughly 108ml.

Better for You, Kinder to the Planet

Every year, over 12 billion pads & 7 billion tampons end up in landfills - many made with plastics and chemicals that linger for centuries. By choosing reusable period underwear, you’re helping cut down that waste with every cycle.

Each pair replaces hundreds of disposables over its lifetime, meaning less plastic, less packaging, and less harm to the planet, while keeping you comfortable and confident.

All MyHarbour underwear is also PFAS-free, because caring for your body and the earth should never come at a hidden cost.

Fit & Sizing

Please refer to the Size Chart for the Secure Boxer, the final image.

If between sizes, we recommend sizing up for comfort.

Shipping & Returns

We offer tracked delivery on every order, so you can follow your package from dispatch to your doorstep with complete confidence.

Delivery Time:
Orders typically arrive within 5–10 working days. Each piece is thoughtfully produced and shipped from our specialist facility to ensure premium quality and care.

Free UK Shipping on all orders over £30.

Returns:
We want you to love your MyHarbour essentials. If for any reason you’re not completely happy, we offer risk-free returns within 30 days of delivery on items within their same condition & original packaging.

Please refer to our Return & Refund Policy, and Shipping Policy for more detail.

Loved by 2150+ Woman🤎

Absorbency: High
Fit: Mid to Long Leg
Layers: 4
Washable & Reusable

Maximum coverage, maximum confidence.

Built for full protection and all-day comfort, the Secure Boxer Short offers complete peace of mind on heavy flow days and overnight wear. The extended leg design prevents movement and provides a secure, no-shift fit - perfect for sleeping, lounging, or high-activity days. Crafted from soft, breathable fabric with a discreet absorbent core, it keeps you dry, fresh, and comfortable through every moment of your cycle.

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MyHarbour vs pads & tampons

Why choose us?

MyHarbour

Pads & Tampons

All-Day Comfort

Breathable Materials

Leak-proof Protection

Eco-Friendly

Reusable

Odour Neutralising Layers

Stays In Place

Exercise-Friendly

Yearly Average Cost

£22.99

£120-£150

Why You'll Love Them..🤎

No more waste. No more discomfort. No more wondering if you’ll leak through.
Just softness, protection, and peace of mind, every single cycle.

One switch saves hundreds of pads and tampons from landfill, keeps toxins away from your body, and unlocks real comfort you can trust.

Cleaner, safer, smarter - once you feel the difference, you’ll never look at “period products” the same way again.

Most people try one pair… and never go back.

The 4-Layer Design: Engineered for Peace of Mind.

The innovative 4-layer construction combines science and softness.

The top layer draws moisture away instantly, the middle layers absorb and neutralise odour, and the base prevents leaks.

The result - reliable protection that feels beautifully natural, all day long.

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Style, Fit, and Feel

For full coverage and total comfort for your heaviest days. Designed with a soft, high-rise waistband and gentle stretch through the legs, it moves with your body while staying perfectly in place. The smooth, breathable fabric provides a calming presence, without suffocating - giving you freedom, protection, and peace of mind all day or night.

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Loved by 2,150+ Woman.

Proven comfort and confidence, trusted by thousands.

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Designed for Real Comfort.

Designed with purpose - breathable fabrics and secure protection you can rely on every cycle.

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30-Day Fit Guarantee

We want you to love your fit. If it’s not right, we’ll make it right - simple as that.

What others say about MyHarbour:

Excellent

4.8

/ 5

based on 1 649 reviews

WOW!

Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants. Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants. Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants.

E.S.

So much better than pads

This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that! This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that! This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that!

C.A.

Incredible quality😍

The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern

O.W.

In Love

I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready. I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready. I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready.

T.K.

So good❤️

You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊 You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊 You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊

N.M.

The most comfortable things ever!!

I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use! I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use! I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use!

L.W.

WOW!

Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants. Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants. Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants.

E.S.

So much better than pads

This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that! This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that! This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that!

C.A.

Incredible quality😍

The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern

O.W.

In Love

I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready. I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready. I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready.

T.K.

So good❤️

You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊 You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊 You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊

N.M.

The most comfortable things ever!!

I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use! I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use! I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use!

L.W.

WOW!

Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants. Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants. Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants.

E.S.

So much better than pads

This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that! This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that! This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that!

C.A.

Incredible quality😍

The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern

O.W.

In Love

I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready. I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready. I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready.

T.K.

So good❤️

You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊 You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊 You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊

N.M.

The most comfortable things ever!!

I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use! I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use! I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use!

L.W.

WOW!

Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants. Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants. Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants.

E.S.

So much better than pads

This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that! This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that! This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that!

C.A.

Incredible quality😍

The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern

O.W.

In Love

I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready. I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready. I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready.

T.K.

So good❤️

You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊 You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊 You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊

N.M.

The most comfortable things ever!!

I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use! I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use! I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use!

L.W.

WOW!

Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants. Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants. Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants.

E.S.

So much better than pads

This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that! This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that! This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that!

C.A.

Incredible quality😍

The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern

O.W.

In Love

I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready. I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready. I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready.

T.K.

So good❤️

You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊 You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊 You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊

N.M.

The most comfortable things ever!!

I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use! I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use! I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use!

L.W.

WOW!

Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants. Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants. Just so gorgeous. They look from the outside like a set of my regular underwear, whilst giving you everything you would want from period pants.

E.S.

So much better than pads

This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that! This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that! This is my first time i've tried period underwear and it won't be my last. I absolutely hate using pads and avoid at all costs, MyHarbour allows me to do that!

C.A.

Incredible quality😍

The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern The fabric quality is unreal, you can tell these are made very well. They wash perfectly too which was a concern

O.W.

In Love

I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready. I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready. I hadn't heard of period pants before I started seeing ads recently. They're exactly what you hope they would be when you imagine the concept! Such a relief to have a few pairs at the ready.

T.K.

So good❤️

You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊 You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊 You just forget you're wearing anything other than normal underwear. Such a simple concept brought to life perfectly😊

N.M.

The most comfortable things ever!!

I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use! I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use! I hesitated because of the price at first, but went for one of the big bundles because it worked out to be a no brainer. Very glad I did, because they're a game changer! Super comfy, pretty, and love that I'm not throwing they out after every use!

L.W.

Your Questions, Answered:

Our underwear is designed with an advanced multi-layer absorbent core that absorbs your flow, wicks away moisture, controls odour, and helps prevent leaks - keeping you dry, fresh, and comfortable all day.

Each pair is machine washable and reusable, so you can simply wear, wash, and wear again - protection that’s better for you, and for the planet.

As the heaviest flow option, the Secure Boxer can hold up to 108ml, or 12 tampons worth, well above any other option.

Yes, that’s exactly what they’re designed for. Depending on your flow and the absorbency level you choose, you can wear your MyHarbour underwear completely on its own, or with extra protection on heavier days and/or with lighter protection variants.

Every cycle is different, so take a little time to find what works best for you.

Once you do, you’ll wonder how you ever managed without them.

Yes - especially our Secure range, designed for heavy flow and full coverage so you can sleep peacefully and protected.

Just rinse in cold water after use, machine wash at 30°C, and air dry.

Avoid bleach, fabric softeners, and tumble dryers to keep them absorbent and soft for longer. We also recommend hand washing if you can.

This is person dependent! Most people find 3–5 pairs is ideal to rotate through their cycle - one for daytime, one for overnight, and a spare while others are drying. Most customers typically take a pair from each of our ranges (Harbour Secure, Balance, and Light).

However, you can absolutely try 1 pair to start, which we typically recommend going with the Secure range first.

Yes. Each pair uses breathable, fabrics that wick moisture and naturally neutralise odour for all-day freshness.

Our Bamboo pairs also come with the antibacterial benefits of one of our best friends from nature.

With proper care, your MyHarbour underwear will last up to 2 years - saving waste, money, and the planet.

Please refer to the size chart made specifically for each product, at the end of the product images.

If you're between sizes, we recommend sizing up for a more comfortable fit. The stretch fabric gently adapts to your body.

Your comfort comes first. If you’re not completely satisfied, we offer risk-free returns within 30 days of delivery on items returned in their original condition in the same packaging.

All orders are tracked and typically arrive within 5–14 working days. Each piece is made and shipped with care to ensure the highest quality.

We currently deliver across the UK & Ireland, with international shipping coming soon.

Because Comfort Should Never Be a Luxury.

Every piece is thoughtfully designed by women, for women.

Crafted with care, comfort, and confidence at the core - to help you move freely, every day of your cycle.

Learn Our Story