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Super Heavy
SUPER HEAVY
FLOW
Woman wearing WUKA Stretch™ High Waist Period Pants in black for super heavy flow, offering full coverage and maximum comfort during periods.
Stretch™ Period PantsSeamless High Waist
$30.00
4.7

Size Chart

 

STRETCH & DRYTECH SIZE GUIDE

Fits 4 sizes in one underwear for a perfect fit first time!

SIZES
Size 1
Size 2
Size 3*

Universal

XS, S, M, L

L, XL, 2XL, 3XL

3XL, 4XL, 5XL,

UK

6, 8, 10, 12, 14

14, 16, 18, 20

20, 22, 24, 26

EU

34, 36, 38, 40, 42

42, 44, 46, 48

48, 50, 52, 54

USA

2, 4, 6, 8, 10

10, 12, 14, 16

16, 18, 20, 22

Hip (cm)

85-105

105-120

120-135

*Not all products are available in size 3

How to Measure Your Hip Size

Adult Stretch period underwear size chart showing how to measure chest, underbust, waist, hips, and leg opening for a perfect WUKA fit. Find your ideal size first time with stretch-fit leakproof comfort

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
Leakproof & Breathable
Leakproof & Breathable
Reusable 2 Years
Reusable 2 Years
Seamless No VPL
Seamless No VPL
Mid Height Gusset
Mid Height Gusset
Super Heavy Flow Up to 60ml
Super Fast Absorption Super Fast Absorption
Multi-Size Multi-Size
Seamless No VPL
Medium Gusset Medium Gusset


From the creators of the original Heavy Flow Period Underwear, NEW Stretch™ Super Period Underwear For Very Heavy Flow absorb up to 60ml of blood - the equivalent of 12 regular tampons or 8 pads/daily liners.

Key features:
  • Double Layer Inner Gusset
  • CoolMax Technology - Ultra Fast Wicking. Quick Drying.
  • Stretch™ Technology - 1 Pair Fits 4 Sizes
  • High Waist for Extra Comfort
  • Seamless- VPL Free for Invisible-Fit
  • Up to 24 Hour Wear

Perfect for long shifts, sleeping or postpartum bleeding.

Wash Before First Use


    Free Shipping

    We want you to love your WUKAs. UK orders usually arrive within 3–5 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
    Internal Fabrics: 80% Polyester, 20% Polyamide, TPU
    95% Cotton, 5% Elastane
    92% Polyester, 8% Elastane

    FAQ: Stretch™ High Waist - Super Heavy

    Stretch™ High Waist Super Heavy pants provide up to 12 hours of protection with adaptive multi-size comfort.

    How much blood do WUKA Stretch™ High Waist Super Heavy pants hold?
    Our WUKA Stretch™ High Waist Super Heavy pants absorb up to 60ml of period blood, equal to 12 tampons or 8 pads.
    What makes the Stretch™ fabric special?
    The patented Stretch™ fabric adapts to your body, expanding and contracting for the perfect fit without digging in.
    Can I wear them overnight on my heaviest days?
    Yes, these are suitable for both daytime and overnight wear, providing up to 12 hours of leak-free protection on very heavy flow days.
    Are they comfortable for bloating or cramps?
    The high waist style provides extra support and comfort around the stomach, making them ideal for bloating and cramps.
    How do I wash and care for them?
    Rinse in cold water after use, then machine wash at 40°C without fabric conditioner. Air dry only to maintain absorbency.
    How long will they last and how many pairs do I need?
    Each pair lasts up to 2 years, helping you save money and reduce waste. Most customers use 5–7 pairs for a full cycle.
    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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    Customer Reviews

    Based on 258 reviews
    82%
    (211)
    10%
    (26)
    5%
    (12)
    3%
    (7)
    1%
    (2)
    E
    Eleanor S.
    Comfiest pants I own!

    I was sceptical about how these would fit seeing as they can fit 4 sizes in one bracket, but oh my gosh these are the comfiest period pants! Probably the comfiest pants full stop! They really are seamless, stylish and definitely do last up to 12 hours comfortably.
    These are better than any other brand I've tired and are well worth the money. I'd recommend and I'm certainly going to be buying more!!!

    M
    Miriam H.
    Second purchase after using my previous ones for

    Second purchase after using my previous ones for four years and counting! Not retiring them as there's nothing wrong with the originals at all just needed a few more pairs. Really really recommend

    M
    Morag K.
    Comfortable

    Comfortable and a brilliant invention. I'm perimenopausal and these are a life saver