Period underwear

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Period pants high waisted brief leopard print reusable washable absorbentPeriod pants high waisted brief leopard print reusable washable absorbent
Period pants high waisted brief leopard print reusable washable absorbent Sale price£24.95
Period pants mid rise brief black reusable washable absorbent leak proofPeriod pants mid rise brief black reusable washable absorbent leak proof
Period pants mid rise brief black reusable washable absorbent leak proof Sale price£24.95
Period Pants Boyshort Style Reusable Washable Knickers with Absorbent GussetPeriod Pants Boyshort Style Reusable Washable Knickers with Absorbent Gusset
Period Pants Boyshort Style Reusable Washable Knickers with Absorbent Gusset Sale price£24.95
Period pants mid rise brief absorbent reusable Bordeaux redPeriod pants mid rise brief absorbent reusable Bordeaux red
Period pants mid rise brief absorbent reusable Bordeaux red Sale price£24.95
Period pants lace cheetah print mid rise briefsPeriod pants lace cheetah print mid rise briefs
Period pants lace cheetah print mid rise briefs Sale price£24.95
Period pants mid rise brief knickers reusable washable absorbent leakproof bluePeriod pants mid rise brief knickers reusable washable absorbent leakproof blue
Period pants mid rise brief knickers reusable washable absorbent leakproof blue Sale price£24.95
Period pants mid rise brief green reusable absorbent leakproof washable menstrual underwearPeriod pants mid rise brief green reusable absorbent leakproof washable menstrual underwear
Period pants mid rise brief green reusable absorbent leakproof washable menstrual underwear Sale price£24.95
Period pants high-waisted brief knickers pink reusable washable absorbent leak-proofPeriod pants high-waisted brief knickers pink reusable washable absorbent leak-proof
Period pants high-waisted brief knickers pink reusable washable absorbent leak-proof Sale price£24.95
Period pants mid rise brief leak proof reusable black and whitePeriod pants mid rise brief leak proof reusable black and white
Period pants mid rise brief leak proof reusable black and white Sale price£24.95
Period pants mid rise brief reusable absorbent leakproof beigePeriod pants mid rise brief reusable absorbent leakproof beige
Period pants mid rise brief reusable absorbent leakproof beige Sale price£24.95
Period pants lace thong style ladies knickersPeriod pants lace thong style ladies knickers
Period pants lace thong style ladies knickers Sale price£24.95
Period Underwear · Free UK Shipping

Wear it. Trust it.
Forget about it.

Period underwear designed for heavy flow — four absorbent layers, 1mm thin, and comfortable enough to wear all day. Free shipping across the UK. Returns within 30 days, no questions asked.

UV400 absorbent layers Holds up to 10 tampons 100+ wash cycles Bamboo-blend fabric Shipped via Royal Mail

What is period underwear?

Period underwear is absorbent underwear designed to replace or supplement disposable pads and tampons. Saint Dor period underwear uses a four-layer system — a moisture-wicking top layer, an absorbent core, a waterproof barrier, and a soft bamboo-blend outer. The result is protection that feels like regular underwear, not a product.

Why Saint Dor?

Most period underwear is designed for light flow. Ours isn't. Each style targets a specific situation — heavy daytime flow, overnight protection, or active use. Combined with free UK shipping, 30-day returns, and Royal Mail delivery, it's the easiest switch you'll make this year.

Worn every day

Comfort you'll actually feel.

Soft, secure and made for your life — not just your period.

Technology

4 layers. Zero leaks.

Only 1mm thicker than regular underwear — yet holds up to 10 tampons' worth of flow. Here's what's inside.

1Stay Dry top layer period underwear
Stay Dry Layer

Wicks moisture away from your skin in seconds. You stay dry even on your heaviest days.

2Ultra-absorbent core period underwear
Absorbent Core

Locks fluid in and neutralises odour. Antibacterial, washable for 100+ cycles.

3Waterproof barrier period underwear
Leak-Proof Barrier

Waterproof membrane that nothing gets through. Sleeping, sitting, moving — covered.

4Soft bamboo outer fabric period underwear
Soft Touch Outer

Bamboo-blend fabric that feels like your favourite underwear. No bulk, no rustling.

Ultra breathableStays cool all day long
High absorptionHolds up to 10 tampons' worth
Leak-proofWaterproof barrier on all sides
The real cost of disposables

See how much you'll save

Drag the slider to match your daily usage. The numbers might surprise you.

How many pads or tampons do you use per day?During your period
5/ day
Pads & tampons What you spend per year £90.00 300 disposables thrown away
Saint Dor One-time investment £34.95 3-pack · lasts 2+ years · zero waste
✦
Save £145.05
over 2 years compared to disposables
🌿 That's 600 fewer pads and tampons in landfill. Each one takes 500+ years to break down.
Why switch

Protection built for heavy flow.

Most period products are made for average flow and sold as though they handle everything. Saint Dor isn't.

Saint Dor
Pads & tampons
Sleep without waking up
No more 3am checks or ruined sheets
No leak anxiety at work
Sit through meetings without worrying
Wear what you want
Light colours, no second-guessing
Stays in place
No shifting when sitting, sleeping or moving
Saves money, cuts waste
Lasts 100+ washes, no plastic waste
Feels like normal underwear
No bulk, no rustling
Ready to make the switch?
Free shipping across the UK · 30-day returns
Results may vary. Period underwear works best as a standalone solution or alongside other period products.
Before you wonder

The questions worth asking

Everything you need to know before you try them.

  • A lot of period underwear is built for light days but sold as though it handles everything. Each style is designed for a specific flow and situation — the Night Short for lying down, the High Waist Short for heavy flow, the Period Slip for lighter days. Getting the right style for your flow is what makes the difference.

  • No — this is the thing most people are surprised by. The absorbent layer is thin, sits flat, and wicks moisture away so you don't feel damp. Nothing bunches, nothing shifts. Most customers say it feels closer to normal underwear than anything they expected.

  • Night leaks usually happen because standard underwear doesn't cover far enough at the back. The Night Short has a longer absorbent panel designed specifically for lying down — it stays in place however you sleep. No more waking up to check.

  • It really isn't. Rinse cold, wash at 30°C, hang to dry. No soaking, no special products. A set of four pairs gets you through your full cycle without any mid-week rushing.

  • Period underwear won't change your cycle — but it can reduce how much headspace it takes up. When you trust what you're wearing, you stop planning around the worst case. A lot of customers say they didn't realise how much mental energy their period was costing them until it stopped.

  • Most people spend between £80 and £150 a year on disposables. Four pairs cover your full cycle and last for years — within a few months they've paid for themselves. No monthly shop, no running out at the wrong moment, no waste.

Still have a question? Contact our team — we reply within 24–48 hours.

Delivery

Free shipping across the UK on every order. Shipped via Royal Mail. Estimated delivery 5–10 working days.

Returns

Not the right fit? Return within 30 days of receipt for a full refund. Items must be unused and in original packaging.

Care

Rinse cold after each use. Machine wash at 30°C. Hang to dry. Do not tumble dry or use fabric softener.