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Heavy
HEAVY
FLOW
Teen model wearing WUKA Teen Stretch™ Boxer Short in navy, designed for heavy flow period protection, showing full-length front view.

Teen Stretch™ Period PantsSeamless Boxer Short

CHF 18.00
4.8

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.

Choose options

Black
Navy
Blue
Size
Pack Size
Fits 3 Sizes
Fits 3 Sizes
Leakproof & Breathable
Leakproof & Breathable
Seamless No VPL
Seamless No VPL
Reusable 2 Years
Reusable 2 Years
Mid Height Gusset
Mid Height Gusset
Boxer Style
Boxer Style

WHY THEY’LL LOVE IT
The Teen Stretch™ Seamless Boxer Shorts are designed to grow with them. Thanks to a bi-directional gusset that expands with their body, they stay comfy, secure, and leak-free—without needing a new size every time they grow.

HOW IT WORKS
The narrow gusset is made for teen proportions and uses CoolMax™ tech to wick moisture, dry fast, and lock in leaks. Holds up to 20ml of flow—that’s around 4 tampons or 3 day pads. Up to 12 hours of protection on lighter days, 4–6 hours on heavier ones.

BEST FOR
First periods. Heavy flow. School days. Sleepovers. These are a full replacement for pads and tampons—built for real life.

GOOD TO KNOW
Wash before first wear. Seamless, breathable, and reusable for up to 2 years. Kinder to their body—and the planet. 

Shipping

UK orders usually arrive within 3–5 working days (Express options available), and international shipping is fully tracked from just £5 – £10 via Royal Mail. 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 88% Polyester, 12% Elastane, TPU
Inner 95% Organic Cotton, 5% Elastane,
95% Polyester, 5% Elastane

FAQ: Teen Stretch Seamless Collection

They can be reused for up to 2 years, saving you money in the long-run, too. For the first 40 days after you receive an order we offer a 100% satisfaction guarantee on your first pair of WUKA pants.

Who is Teen Stretch™ for?
Teen Stretch™ is designed for young tweens and teens aged 8 - 16 navigating their first periods. Ideal for the first period or as their bodies grow through puberty.
How does Teen Stretch™ work?
Following the sell-out success of WUKA Stretch™ - the world’s first full brief multi-size period pants – last year, we have adapted our innovative Stretch™ Technology for new Teen Stretch™ incorporating a narrower gusset, for a more snug and comfortable fit for younger growing bodies.
What Gusset Style are Teen Stretch™?
All Teen Stretch™ period underwear come with a mid-height gusset
Will Teen Stretch™ save me money?
Raising fast-growing teens can be expensive - keeping up with their constant needs for new clothes, shoes and sports kits doesn’t come cheap! WUKA Teen Stretch™ pants are an affordable, comfy eco-friendly solution designed to last for up to 2 years and fit up to 3 sizes meaning less expense, waste and one less thing to worry about!
How easy is it to use Teen Stretch™?
Switching to WUKA could not be easier for young adults. No more awkward moments, period emergencies or leaky disasters. Designed to completely replace pads and tampons, WUKA Teen Stretch™ pants can be worn for up to 12 hours so tweens and teens can carry on with school, sports and whatever else they do for fun on their period- with nothing holding them back. Simply wear, machine wash and air dry. Avoid tumble drying- WUKA pants don’t like it!
What is the changing bag for?
The perfect match for Teen Stretch™ pants, WUKA changing bags feature two zipped pockets so you can change and store your used pants in separate compartments. Made from 100% waterproof fabric, the double pocket reusable bag is perfect for storing used WUKA pants and pads until you’re able to hand wash or machine wash them. Available in blue, back, red and even a limited edition leopard print design.
Struggling to have the “first period” chat?
It can be tricky to navigate the first time but don’t worry, WUKA has some fantastic books to help you have those important conversations. Check out the Girls Guide to Growing Up Great by Sophie Elkan - it’s funny and wise and the perfect read for growing girls!
2024 Health & Wellbeing Awards Gold Winner Badge – recognising WUKA for excellence in health and sustainable period care
Beauty Shortlist Mama & Baby Awards 2024 Winner Badge – celebrating WUKA’s award-winning products for expecting and new mums
Our Stretch Super Heavy Period Pants take home the silver-award at the Green Parent Natural Beauty Awards 2025 for best menstrual care product
WUKA Perform Period Swimsuit wins best value cross-training kit at the Women's Running Awards 2023
Our High Waist Black Seamless Stretch – Super Heavy Flow period-proof underwear wins best period pants at the Beauty Shortlist Wellbeing Awards 2025
WUKA were finalists at the Pure Beauty Global Awards 2025
We won Gen M Award Winner - Breakthrough Partner for our seamless DryTech™ Incontinence light leaks underwear
The WUKA Postpartum Stretch™ set has been voted Best Postpartum Wellness Product for 2025 by The Positive Birth company

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  • 5 stars: 295 (90%)
  • 4 stars: 23 (7%)
  • 3 stars: 3 (1%)
  • 2 stars: 3 (1%)
  • 1 star: 4 (1%)
Some of the reviews shown are from related products the merchant grouped with this one.
M
Michelle T.
Brought for my 12 year old daughter

Brought for my 12 year old daughter who hates using pads and she absolutely loves these pants. So soft and comfy and she loves wearing them to school.

A
Anonymous
Excellent product

Daughter loves them. Says they are very comfortable. Excellent product.

A
Anonymous
No leaks!

They work well and no leaks in heaviest first two days of period. Would recommend!

A
Anonymous
Fantastic

Fantastic swimsuit

C
Customer
Used it for the first time not long ago thinking

Used it for the first time not long ago thinking it didn’t work well but now I’m going to purchase more from tescos or boots!

J
Judith J.
Not tried yet, these were purchased to have

Not tried yet, these were purchased to have available when needed

A
Ali B.
Fantastic, work well, no leaks, comfortable

Fantastic, work well, no leaks, comfortable. But also please can we take the branding off the front, why why why?!

Y
Yuliia S.
It’s good for my

It’s good for my daughter

A
Annamay
Not to be dramatic…

Not to be dramatic. But these have changed my life!
As an endo sufferer periods are **** on earth. I’m unable to use tampons because of swelling and pads are well… pads- pretty icky feeling.
I was worried about the absorption- would it be just like a pad? I am very heavy every month so was also worried about leaks.
I’ve worn my pants for the first time today- absolute game changer. They are comfortable, have the perfect amount of stretch and they actually work!!
Just wish I would have tried these years ago!
If you’re on the fence and reading reviews, thinking about purchasing- do it! You won’t regret it and it will change your life!

L
Lisa L.
Brilliant!

Brilliant!

A
Ashley W.
I can trust them

I had a hard time trusting for the first few wears, but now I can confidently sleep through the night or go about my day. The teen size S-L worked great on my 5'3" 115 frame and I am an adult. The one star off is because I'm still haven't figured out an easy way to wash them easily and thoroughly.

A
Anonymous
These are absolutely brilliant - my daughter

These are absolutely brilliant - my daughter started her periods age 11 and this have given her so much confidence. They last all day even on heavier days- so she finds it easy!

A
Anonymous
Fantastic product

Fantastic product.

A
Anonymous
Best decision ever made

Best decision ever made. Super comfortable and 100% leak proof so far even with super heavy period

A
Anne
My daughter has just started her periods as she

My daughter has just started her periods as she loves these pants, I have just bought the swim suit and just about to buy the shorts and more incontinent pants 100% recommend

S
Shirley Y.
Very pleased with these pants

Very pleased with these pants. Nice colour, good fit.

L
Lindsey
I would highly recommend these, bought for my 13

I would highly recommend these, bought for my 13 yr old daughter and these have been perfect, I’ve just made my 2nd purchase for her and now my older daughter, they do as they say and better for the environment

C
Chinwe
Lovely Peace of Mind.

It’s so lovely as usual to get some more of the Wuka products. This is for my daughter in expectation of her first period. My older daughter uses it and we are so glued to Wuka! Thanks for the peace of mind and confidence that Wuka offers. My daughter isn’t scared of that aspect of growing up❣️

A
Anonymous
My daughter says these are a life

My daughter says these are a life saver

A
Anonymous
So good! 💓

This is the best period underwear mr daughter has tried! My daughter is 13 and hates having to change her pads at school and she often worries a lot about leakage. We tried the modibodi ones in moderate flow but they didn’t last long and she didn’t like that you could see the actual gusset through them. These are amazing super smooth looking like normal underwear they last her a full school day and she doesn’t have to worry any more thank you 💕

A
Anonymous
Amazing customer service

I bought them for my daughter because I wanted to be prepared for when the time comes :) I had some issues with the sizing, but everything was sorted out without any problems. Thank you!

A
Anonymous
Amazing quality & Highly recommended

Amazing quality & Highly recommended.

A
Anonymous
Excellent product these are to replace ModiBodi

Excellent product these are to replace ModiBodi ones that just always leak. The Wuka are by far the superior product with no leakage issues. The feel lovely and have a better gusset protection.

I
Iona
Even better than expected

Delighted with these pants. First time trying period pants and they have been everything I hoped for and more! They’re really comfy and have been great for all day wear without worrying about leakage/smell etc.

I know these pants are advertised for heavy flow and for teenagers, but I thought I’d give them a try as I have fluctuating flow and am a petite female. I figured they’d work well for adults and looked comfy. I thought they would be bulky as they are sold as heavy flow but they’ve not been that at all. The looked really small when I took them out the packaging but they’ve stretched perfectly to fit me. Kind of sad to go back to my regular pants as these stretch well and the fabric feels so nice!

N
Nichola
Great

Was a bit skeptical at first if it would work but bought for my teenage daughter and she loves them. Comfortable, no foul odour and keeps everything in. Will be buying some more.

A
Anonymous
Great to wear for football

These are great for my daughter she wears them for football and gives her the confidence that she needs when it's that time of the month.

A
Anonymous
great

great idea

C
Carmen G.
My daughter loves it and asked me to order more

My daughter loves it and asked me to order more. Thank you team, no leaking and feel very comfortable.

A
Anonymous
My Daughter loves them

My Daughter loves them - she was very dubious at first and was scared of leaking but she didn’t . Very impressed

A
Anonymous
Amazing, definitely recommend for girls first time

Amazing, definitely recommend for girls first time. Makes life so much easier for them.

A
Anonymous
Amazing products

These products have been a god send for my 10 year old daughter, she started her periods 2 months before her 10th birthday and as you can imagine this is a very scary time for her but having period pants have meant that she is comfortable and feels secure. I only wish these were available when I was a child / teenager.

A
Anonymous
Bought this set for my daughter

Bought this set for my daughter and she absolutely loves them. She said they feel comfy and she feels confident that they don’t look any different to ordinary underwear. I would highly recommend these.