Skip to product information
Medium
MEDIUM
FLOW
Woman wearing WUKA Ultimate™ Bikini Period Pants for medium flow, styled with a black crop top and waist beads, highlighting a comfortable and secure fit.
  • Medium
    MEDIUM
    FLOW
    Woman wearing WUKA Ultimate™ Bikini Period Pants for medium flow, styled with a black crop top and waist beads, highlighting a comfortable and secure fit.
  • Medium
    MEDIUM
    FLOW
    Back view of WUKA Ultimate™ Bikini Period Pants for medium flow, highlighting full coverage and seamless comfort.
  • Free Shipping · 100% Happy Guarantee · Try for 40 days (free refunds)
  • Side view of the WUKA Ultimate™ Bikini Medium Flow Period Pants, showing sleek fit and soft waistband on a model.
  • Detail shot of the WUKA Ultimate™ Bikini Period Pants for medium flow, showing fabric texture and stitching on the waistband.
  • Infographic highlighting WUKA Ultimate™ Bikini Medium Flow features – Super-Fast Absorption, Leak-Proof up to 12 hours, and GOTS-Certified Organic Cotton.
  • Three diverse women wearing WUKA Ultimate™ Bikini Period Pants outdoors, showcasing body positivity and comfort in reusable menstrual underwear.
  • Woman wearing WUKA Ultimate™ Bikini Period Pants for medium flow, styled with a black crop top and waist beads, highlighting a comfortable and secure fit.
  • Back view of WUKA Ultimate™ Bikini Period Pants for medium flow, highlighting full coverage and seamless comfort.
  • Side view of the WUKA Ultimate™ Bikini Medium Flow Period Pants, showing sleek fit and soft waistband on a model.
  • Detail shot of the WUKA Ultimate™ Bikini Period Pants for medium flow, showing fabric texture and stitching on the waistband.
  • Infographic highlighting WUKA Ultimate™ Bikini Medium Flow features – Super-Fast Absorption, Leak-Proof up to 12 hours, and GOTS-Certified Organic Cotton.
  • Three diverse women wearing WUKA Ultimate™ Bikini Period Pants outdoors, showcasing body positivity and comfort in reusable menstrual underwear.
WUKA Ultimate™ Bikini - Medium
Ultimate™ Period PantsBikini Brief
£17.99
5.0

Size Chart

 

ULTIMATE, PERFORM, LACE, RE-PURPOSE & BASICS PERIOD PANTS

SIZE UK EU USA
XXS 4-6 30-32 0-1
XS 6-8 32-34 1-2
S 8-10 34-36 2-4 
M 10-12 38-40 6-8
L 12-14 42-44 10-12
XL 14-16 44-46 12-14
2XL 16-18 46-48 14-16
3XL 18-20 48-50 16-18
4XL 20-22 50-52 18-20
5XL 22-24 52-54 20-22
6XL 24-26 54-56 22-24

 

Styles: High Waist, Midi Brief, Bikini, Hipster

 

How to Measure Your Hip Size
Ultimate period underwear size chart showing how to measure chest, underbust, waist, hips, and leg opening for the perfect WUKA fit – get your size right first time for all-day leak-free 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
Organic Cotton
Organic Cotton
Mid Height Gusset
Mid Height Gusset
Leakproof & Breathable
Leakproof & Breathable
Reusable 2 Years
Reusable 2 Years

WHY YOU’LL LOVE IT

WUKA Ultimate™ Bikini Medium Flow Pants are your complete tampon and pad replacement, combining reliable protection with a flattering bikini cut. Designed with a high-leg style and soft organic cotton, they’re comfy, breathable, and kind to skin.

HOW IT WORKS

Each pair absorbs up to 15ml of period blood or light leaks - about 3 tampons’ worth or 2 pads. Built-in leak-proof layers keep you fresh and secure for up to 12 hours of wear, so you can get on with your day without worry.

BEST FOR

Medium flow days, light leaks, or when you want period pants with a flattering bikini fit that doesn’t compromise on comfort or protection.

GOOD TO KNOW

Made from GOTS-certified organic cotton, grown without chemical pesticides, fertilisers, or GM seeds. Wash before first wear. Reusable for up to 2 years, saving hundreds of disposables. Sustainable, breathable, and designed for real life.
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 : 95% organic cotton. 5% elastane Middle: 80% polyester,20% elastane Breathable TPU
Inner: 95% organic cotton, 5% elastane

FAQ: Ultimate™ Bikini

Bikini-cut period pants in soft organic cotton for medium flow days—breathable, comfy and protective for up to 12 hours.

How much blood do the Ultimate™ Bikini Medium pants hold?
Each pair absorbs up to 15ml (about 3 tampons or 2 pads), ideal for medium flow days and light leaks.
Do they replace pads and tampons?
Yes—on medium flow days they’re designed to fully replace pads and tampons. If your flow increases, change sooner or choose a higher absorbency style.
What’s the fit like and are they comfortable?
A flattering bikini cut with a high-leg shape made from soft, breathable organic cotton that feels comfortable and kind to skin.
Can I wear them for up to 12 hours or overnight?
They provide up to 12 hours of protection. You can wear them during the day or overnight on medium flow—change sooner if you start to feel wet, as everyone’s flow is different.
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; do not tumble dry or soak for long periods.
How long will they last and how many pairs do I need?
With proper care they’re reusable for up to 2 years. Most customers find 5–7 pairs work well for a full cycle; you can build a rotation with single, 3-pack or 5-pack options.

You may also like

Customer Reviews

Based on 132 reviews
97%
(128)
3%
(4)
0%
(0)
0%
(0)
0%
(0)
R
Roisin
So soft and so comfortable

So soft so comfortable and no leaks even when I have a flood! Sometimes with other period pants, I can feel really hot or else really aware that I have all of the extra padding but not with these pants. They are fantastic and I can rely on them. It meant that I can forget that I have my period.

H
Helena E.
I highly recommend WUKA period pants

I’ve been buying WUKA period pants for 3 years now and they have always been reliable for comfort, absorption and for being a reusable product. I’ve been able to go about my day doing the activities I enjoy, feeling confident I won’t have any leaks.

R
RJ
Great purchase

Comfy, convenient gives confidence.

123