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Heavy
HEAVY
FLOW
Model wearing WUKA Stretch™ Boxer Short in Light Nude for heavy flow, full-body view showing seamless fit and high-waisted comfort.
Stretch™ Period PantsSeamless Boxer Short
£18.99
4.7

Size Chart


WUKA Teen Stretch Period Pants
Fits 3 sizes in one underwear for a perfect fit first time and for growing teens & tweens

SIZES Size 1: Age 8-12yrs Size 2:  Age 12-16yrs
Universal XXS, XS, S S, M, L
UK 4,6,8, 8, 10, 12,
EU 134-140, 146-152, 158-164 158-164, 170-176
Hip (cm) 75 - 90 90 - 105
 

How to Measure Your Hip Size
Teen Stretch period underwear size chart with measuring guide for chest, underbust, waist, hips, and leg opening to help teens find the perfect WUKA fit first time. Ensure leakproof comfort and flexible sizing that grows with you
WUKA TIP: No tape measure? 
You can measure yourself with a belt or dressing gown cord and a 30cm ruler! Tie the belt around your hips, place a piece of tape or pinch where it reaches, then lay flat and carefully use the ruler to measure the length.
Size
Pack Size
Fits 4 Sizes
Fits 4 Sizes
Seamless No VPL
Seamless No VPL
Leakproof & Breathable
Leakproof & Breathable
Boxer Style
Boxer Style
Reusable 2 Years
Reusable 2 Years

WHY YOU’LL LOVE IT

WUKA Boxer Shorts are designed to feel as comfortable as your favourite loungewear, while giving you complete peace of mind on heavy flow days. With a low-rise fit and extra coverage, they’re soft, secure, and made to move with you with no odour and no stress.

HOW IT WORKS

Built with our signature Stretch™ fabric and a wide gusset that moulds to your body, these boxers stay smooth under clothing and never dig in. Absorbs 20ml+ of period blood – about 4 tampons’ worth or 3 pads, with super-fast absorption that keeps you feeling dry and confident.

BEST FOR

Heavy flow days, overnight wear, working long shifts, or lounging at home. Perfect under lighter clothing, joggers, or even as comfy nightwear.

GOOD TO KNOW

Wash before first wear. Reusable for up to 2 years, saving hundreds of disposables. Breathable, hypoallergenic, and designed for real life comfort.

Free Shipping

We want you to love your WUKAs. UK orders usually arrive within 2–5 working days (express options available), and international shipping is fully tracked from just £5–£10 via FedEx. For our EU customers, we also collect VAT upfront to avoid any surprise fees on delivery.

If it’s your first pair, you’re protected by our 100% Satisfaction Guarantee — try one on, and if it’s not the right fit, you can return or exchange within 40 days. All other items must be unworn and in their original packaging. Once we receive your return, refunds are processed within 10 working days.

See our Shipping Cost and Returns & Refund Policy.

Wash and Care

Rinse, Wash at 40°, air dry inside out. Tested to 54 washes.

Composition

Outer: 80% Polyamide, 20% Elastane
Middle: 80% Polyester, 20% Elastane Breathable TPU
Inner: 95% Cotton, 5% Elastane

FAQs: Stretch Seamless Collection

WUKA Stretch pants celebrate every body. One pair stretches to fit up to four sizes, adapting to your unique shape and even during bloating, so you always get a secure, comfortable fit and a more sustainable period.

How much period blood do Super Heavy Pants Hold?
NEW Stretch™ Period Pants For Super Heavy Flow absorb 60ml of blood - the equivalent of 12 regular tampons and 8 pads.
Will switching to WUKA save me money?
Yes! Switching to WUKA is definitely a cheaper alternative to monthly usage of pads and tampons. WUKA period pants were the first in the world to completely replace pads and tampons- meaning even on your heaviest flow day you can be worry-free with zero leaks and odours thanks to our fast absorbing, quick drying underwear.
Are these period pants suitable for people with fibroids, PCOS, endometriosis or adenomyosis?
Yes, in fact these underwear were designed with you in mind. We understand how debilitating these conditions are and how super heavy flow requires additional protection. These pants will hopefully provide you with additional comfort and confidence on the heaviest days.
I've just had a baby, can I wear WUKA Stretch period pants?
Perfect for new mothers, WUKA Stretch was designed for you- super soft, comfy and designed to adjust to your body as it changes post pregnancy. The seamless design is gentle and sensitive to skin.
What is Stretch Technology?
In true taboo-breaking WUKA style, Stretch™ features our new patented Stretch™ technology— a meticulously designed suspended gusset is built in to each pair of underwear, engineered to retain its stretch, expand or contract depending on your unique shape. Figure flattering with a completely seamless construction, you’ll find no VPL’s here.
What is CoolMax Technology?
CoolMax™ Absorbent Technology fabric is used features in the top two layers gusset offering faster absorption for less chance of leaks and odours as well as faster-drying time post washing.
How do I care for my WUKA period pants?
Please wash these pants before wearing for the first time. Our WUKA Stretch period pants require a cold wash only. If your machine doesn’t have this setting, hand washing is your best alternative. We recommend treating your period pants as delicates. Using our mesh laundry bag will help to protect the fabric and prolong the life of your underwear.
How do WUKA period pants work?
Layers. Our many layers contribute to making sure you get a long lasting feeling of dryness and security, not having to worry about leakage, smell or infection. Every pair includes a super absorbent gusset which consists of many layers, the middle layers absorb and lock in the blood whilst working with the outer layer to ensure you stay dry through your day to day activities! Period pants look and feel like your regular underwear but they are leak-proof, which means you don't have to wear a pad, a tampon or menstrual cup when you wear them during your period.
I have really heavy periods, will I need to use any additional products?
It depends on the level of absorbency that you need. WUKA are designed to hold a certain amount of menstrual flow, as specified on our website from light flow to super heavy flow. If you have a very heavy flow, it's always best to carry extra pants.
How many pairs do I need?
We find that 5-7 pairs is best for most customers considering they last up to 2 years. Check out our savings on bundle cycle sets for 3 to 5 pairs.
How long will my period pants last for?
WUKA period pants can be reused for up to 2 years. For the first 40 days after you receive an order we offer a 100% satisfaction guarantee on your first pair of WUKA pants.
Do WUKA pants contain PFA's?
The simple answer is no! WUKA has been committed since day one to not use any harmful chemicals in the production of our products. All of the materials that we use are planet friendly, animal friendly and contain no added chemicals, such as silver or antibacterial treatments, stain-resistant or Perfluoroalkyl and Polyfluoroalkyl substances (PFAs or PFSAs). All WUKA are independently tested by Highstreet Textile Testing Services Ltd (HTTS) who guarantee there is zero trace of PFA's in our products.
How do I wash and dry my period pants?
After use, rinse with cold water until the water runs clear. This is best done immediately after removing. Pop your WUKA with similar, dark coloured garments and wash at 30-40ºc, inside out. Don't use fabric conditioners. Air dry your WUKA Period Pants outside on the line or indoors on an airer. Don't tumble dry it. For the Heavy Flow and the Super Heavy Flow, we advise washing inside out and giving them an extra spin. As well as this, we recommend sticking on a warm radiator to ensure complete dryness. We always advise washing pants as cold as possible. This will prolong the lifespan of your pants and also keep the absorbency as high as possible. Refrain from drying in a dryer or on a radiator (if possible) and always dry inside out. We would not suggest leaving your WUKA pants to soak for a prolonged time, this can cause the material and bonding to wear and damage quicker.

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Customer Reviews

Based on 248 reviews
81%
(202)
10%
(24)
5%
(12)
3%
(7)
1%
(3)
H
Helen J.
They definately work bt they are a tight high

They definately work bt they are a tight high fit! im n 8-10 and tight!

R
Rhian
Leak proof but not as comfy as WUKA organics

Only 3* because I've had WUKA organics for years and have loved them. I thought I'd try these. They aren't as stretchy as they say considering they're supposed to fit large too. I am a size 10/12 normally. Today I am bloated and they're uncomfortable 😣 I can feel the restriction on my stomach and very aware of them when I'm not usually with the others. stupidly bought 5 pairs and now I wish I stuck with the organics.

No leaks though, I just loved the original organic period pants, comfy, stretchy and proper cotton. Will be purchasing them again and again

A
Anonymous
Very comfortable

Very comfortable & really leak proof