Heavy Absorbency (Up to 6 tampons)

Heavy Flow Mid Brief x3 Set

£56.20

£74.90 £56.20

- 24% Sold out

holds 30-40ml of fluid

leakproof & odour-proof

Includes 3x Mid Brief

Size: S —

size chart

Size Guide (UK & US)

Size	Waist (cm/in)	Hip (cm/in)	UK Size	US Size
S	64–70cm / 25.5–27.5"	81–89cm / 34–37"	UK 6–8	US 2–4
M	68–74cm / 27–29"	85–93cm / 36–39"	UK 8–10	US 4–6
L	72–78cm / 28.5–30.5"	89–97cm / 38–41"	UK 10–12	US 6–8
XL	76–82cm / 30–32"	93–101cm / 40–43"	UK 12–14	US 8–10
XXL	80–86cm / 31.5–33.5"	97–103cm / 42–44"	UK 14–16	US 10–12

S

Waist: 64–70cm / 25.5–27.5"
Hip: 81–89cm / 34–37"
UK Size: UK 6–8
US Size: US 2–4

M

Waist: 68–74cm / 27–29"
Hip: 85–93cm / 36–39"
UK Size: UK 8–10
US Size: US 4–6

L

Waist: 72–78cm / 28.5–30.5"
Hip: 89–97cm / 38–41"
UK Size: UK 10–12
US Size: US 6–8

XL

Waist: 76–82cm / 30–32"
Hip: 93–101cm / 40–43"
UK Size: UK 12–14
US Size: US 8–10

XXL

Waist: 80–86cm / 31.5–33.5"
Hip: 97–103cm / 42–44"
UK Size: UK 14–16
US Size: US 10–12

S M L XL 2XL

Complete Your Set

Waterproof Wet Bag

£12.90

£19.00

A practical waterproof bag for carrying new or used underwear.

why you'll Love it

skin-safe fabric, OEKO-TEX® certified, free from harmful substances.

everyday comfort, Feels like your favourite underwear, not period gear.

front-to-back barrier, keeps you safe sitting, sleeping, or on the go.

how It works

our heavy-duty core absorbs 30–40ml (≈6 tampons or 3 pads) for reliable protection.

multi-layer bamboo fabric is naturally antibacterial, helping lock in leaks and stop odour.

enjoy up to 8 hours of fresh, dry comfort (flow-dependent) — so you can move through your day with confidence.

care guide

give them a quick cold rinse before popping them in a gentle wash, then hang to dry. Simple steps to keep them lasting cycle after cycle

fabric

Lining Layer: 95% Cotton, 5% Spandex

Middle Layer: 390gsm, 80% Polyester, 20% Nylon + Breathable PUL

Outer Layer: 95% Bamboo, 5% Spandex

our underwear is certified according to OEKO-TEX STANDARD 100

shipping & returns

we offer a 14-day return policy. You have 14 days from receiving your order to request a return.

to be eligible:

items must be unused, unopened, and in their original sealed packaging
must include hygiene seal (if applicable)
customers are responsible for the cost of return shipping

View full details

absorbency guide

Absorbency Guide – Find Your Flow

Level	Capacity
Light	up to 15–20 ml
Moderate	up to 20–30 ml
Heavy	up to 30–40 ml

Light

Capacity: up to 15–20 ml

Moderate

Capacity: up to 20–30 ml

Heavy

Capacity: up to 30–40 ml

£56.20

£74.90 £56.20

myra

Heavy Flow Mid Brief x3 Set

£56.20

£74.90 £56.20

Leakproof Protection

PFAS FREE

Up to 8 Hours Wear

Leakproof Protection

PFAS FREE

Up to 8 Hours Wear

Leakproof Protection

PFAS FREE

Up to 8 Hours Wear

Leakproof Protection

PFAS FREE

Up to 8 Hours Wear

Leakproof Protection

PFAS FREE

Up to 8 Hours Wear

Leakproof Protection

PFAS FREE

Up to 8 Hours Wear

Leakproof Protection

PFAS FREE

Up to 8 Hours Wear

Leakproof Protection

PFAS FREE

Up to 8 Hours Wear

Leakproof Protection

PFAS FREE

Up to 8 Hours Wear

Leakproof Protection

PFAS FREE

Up to 8 Hours Wear

dry feel

breathable, moisture-wicking fabric keeps you feeling fresh and dry

odour control

antibacterial technology helps prevent odours from hanging around

absorbent

multi-layer design holds up to 6 regular tampons worth

still have questions?

how does Myra period underwear work?

Our multi-layer gusset is the secret to comfort and protection.

A soft, moisture-wicking top layer keeps you dry.

An absorbent core locks fluid away.

A leak-resistant shield helps stop leaks.

Finished with an outer fabric designed for comfort and style, so you feel protected and confident all day.

Each layer works together to give you breathable, reusable protection, that feels just like your regular underwear.

how long can I wear them?

most people wear myra undies for 8–12 hours, depending on their flow. on heavier days, you might prefer to change sooner, just like you would with pads or tampons.

do I need to wear a pad or tampon as well?

myra period underwear is made to be worn on its own. With absorbency levels from light to heavy, it’s designed to fully replace pads and tampons

are they hygienic?

yes! myra underwear is made with OEKO-TEX® Standard 100 certified fabrics that are tested for harmful substances. plus, the built-in antibacterial layers help control odour and keep you feeling fresh

how do I wash them?

After wearing, just rinse in cold water, then machine wash on a gentle cold cycle and hang to dry.

with proper care, each pair lasts for years, replacing 200+ disposables check out our full Wash Guide

who are they for?

myra period underwear is made for anyone with a period, from teens to adults. they’re also a great choice for light bladder leaks, postpartum recovery, or just everyday backup protection

do they contain PFAS?

myra underwear is completely PFAS-free. PFAS are ‘forever chemicals’ sometimes found in textiles that can build up in the body over time, but never in ours. we only use certified, skin-safe materials to make sure your underwear is gentle, protective, and safe to wear every day

soft on skin

bamboo that loves your skin
Bamboo’s softness is gentle on sensitive skin, making it perfect for your period and everyday wear.
odour protection
Its natural antibacterial powers help control odour, keeping you fresh and confident.
planet friendly
Sustainable and absorbent, it’s the ideal fabric for underwear you can rely on every cycle.

reviews

4.8

Sofia R. July 2025

Verified Buyer

Perfect for people with Endometriosis

I have endo and my periods are heavy and painful, and honestly exhausting. I was always doubling up with pads and still leaking through. Myra underwear has been such a relief. They actually hold my heavy flow, even on the worst days, and I don’t feel like I’m sitting in a pad. The softness makes such a difference when everything feels sore, and for once I can get some rest without worrying about ruining my sheets. These have taken a huge weight off my mind.

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Elena M. May 2025

Verified Buyer

Worth a try!

Didn’t think period underwear would actually work for me but honestly they’re a game changer. I’ve got a really heavy flow and was sick of leaking through pads at work. These feel like normal knickers, dead comfy, and I got through a full day without stressing once. Wish I’d tried them sooner.

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Marta S. February 2025

Verified Buyer

Highly recommended!!

My daughter’s just started her periods and school days were such a worry with pads leaking. We tried Myra and it’s been a massive weight off both our minds. She can get through lessons without running to the loo or feeling embarrassed, and she says they just feel like normal pants. Honestly wish this was around when I was younger.

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Nadia L. January 2025

Verified Buyer

Loved this for my sensitive skin

I get eczema and pads always made me sore and itchy. These are the first period pants I’ve worn that actually feel soft and don’t irritate me. They just feel like normal underwear but with way more protection. Genuinely such a relief

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Jasmine R. September 2025

Verified Buyer

Planet friendly and comfy!

I’ve been trying to cut down on waste and pads were one of the biggest frustrations. Switching to Myra means I’m not throwing away piles of plastic every month. They’re easy to wash, last ages, and it feels good knowing I’m actually making a difference

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Stephanie K May 2025

Verified Buyer

Perfect for office days

I wear Myra to the office and it’s such a win. No pad changes between meetings, no leaks on my commute just comfy underwear that actually does the job.

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Amara D August 2025

Verified Buyer

Perfect for postpartum ladies!

After having my baby my bleeding was so heavy, pads were leaking and just felt awful. Tried Myra and honestly it’s been such a relief. They hold so much more than I expected and don’t feel bulky, plus the softness doesn’t rub on my scar. its been the first time since I’ve slept through the night without waking up worried about the bed sheets.

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Daniela P June 2025

Verified Buyer

so good for the gym!

Wore Myra to the gym and honestly forgot I was even on my period. No shifting pads, no leaks mid-squat just comfy pants that did their job

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Olivia T July 2025

Verified Buyer

These are so convenient

I didn’t realise how much I was spending on pads until I added it up. With Myra I just wash and reuse, so I’m not buying packs every month or running out last minute. It works out cheaper in the long run and way less hassle

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Amara D May 2025

Verified Buyer

Great for Holiday!

Took Myra on a trip and honestly won’t travel without them now. Rinse, wash in the sink, hang to dry so simple, and I didn’t need to pack a stack of pads or tampons

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