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Heavy
HEAVY
FLOW
Front view of a model wearing WUKA Ultimate™ Boxer Shorts for heavy flow, designed for full coverage and maximum period protection.
  • Heavy
    HEAVY
    FLOW
    Front view of a model wearing WUKA Ultimate™ Boxer Shorts for heavy flow, designed for full coverage and maximum period protection.
  • Heavy
    HEAVY
    FLOW
    Close-up of WUKA Ultimate™ Boxer Shorts showing soft black fabric, WUKA-branded waistband, and high absorbency gusset for heavy flow days.
  • Free Shipping · 100% Happy Guarantee · Try for 40 days (free refunds)
  • Rear view of WUKA Ultimate™ Boxer Shorts for heavy periods, showing smooth full-coverage fit and supportive waistband.
  • Side profile of WUKA Ultimate™ Boxer Shorts highlighting the mid-thigh length and seamless design for comfort and discretion during menstruation.
  • Close-up of the waistband and stitch detailing on WUKA Ultimate™ Boxer Shorts, featuring soft, breathable fabric ideal for heavy flow.
  • WUKA Ultimate™ Boxer Shorts product benefits graphic with icons showing super-fast absorption, 12-hour leak-proof protection, and breathable hypoallergenic design.
  • Front view of a model wearing WUKA Ultimate™ Boxer Shorts for heavy flow, designed for full coverage and maximum period protection.
  • Close-up of WUKA Ultimate™ Boxer Shorts showing soft black fabric, WUKA-branded waistband, and high absorbency gusset for heavy flow days.
  • Rear view of WUKA Ultimate™ Boxer Shorts for heavy periods, showing smooth full-coverage fit and supportive waistband.
  • Side profile of WUKA Ultimate™ Boxer Shorts highlighting the mid-thigh length and seamless design for comfort and discretion during menstruation.
  • Close-up of the waistband and stitch detailing on WUKA Ultimate™ Boxer Shorts, featuring soft, breathable fabric ideal for heavy flow.
  • WUKA Ultimate™ Boxer Shorts product benefits graphic with icons showing super-fast absorption, 12-hour leak-proof protection, and breathable hypoallergenic design.
WUKA Ultimate™ Boxer Shorts - Heavy
Ultimate™ Period PantsBoxer Shorts
£27.99
4.8

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.
Choose Size
Pack Size
Ultimate Tencel Fabric
Ultimate Tencel Fabric
Leakproof & Breathable
Leakproof & Breathable
Reusable 2 Years
Reusable 2 Years
High Coverage
High Coverage

WHY YOU’LL LOVE IT
Roomy, cozy, and ultra - reliable - these boxer shorts combine anti - chafing comfort with full leak - proof protection. Whether you're lounging, sleeping, or on the move, these are designed to give you complete confidence in a low - profile silhouette.

HOW IT WORKS
A generous full - coverage gusset holds up to 20ml of flow (around 4 tampons or 3 pads), delivering up to 12 hours of leak defense. With a longer leg cut and stretch waistband, they're made to stay snug without rolling or pinching - so you can go about your day completely worry - free.

BEST FOR
Heavy flow shifts, overnight protection, postpartum wear, or everyday comfort - anyone who wants practical leak - proof wear that actually feels like underwear.

GOOD TO KNOW
Wash before first wear. Made from carbon - neutral Tencel™, breathable, hypoallergenic, and PFAs‑tested. Each pair replaces over 200 disposable pads or tampons across its lifespan.
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% TENCEL modal. 5% elastane Middle: 80% polyester,20% elastane Breathable TPU
Inner: 95% TENCEL modal. 5% elastane

FAQ: Ultimate™ Boxer Shorts - Heavy

Ultimate™ Boxer Shorts Heavy offer fuller coverage, comfort and heavy-flow protection for up to 12 hours.

How much blood do WUKA Ultimate™ Boxer Shorts Heavy hold?
Our WUKA Ultimate™ Boxer Shorts Heavy absorb up to 20ml of period blood, equal to 4 tampons or 3 pads.
What makes the boxer short style different from other period pants?
The boxer short style provides fuller coverage and a sporty look, combining heavy flow absorbency with everyday comfort.
Can I wear them overnight?
Yes, they are suitable for both daytime and overnight wear, providing up to 12 hours of leak-free protection.
Are they comfortable for lounging or sport?
The relaxed boxer cut makes them ideal for lounging, sleeping, or days when you want extra comfort without restriction.
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 rotation.

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Customer Reviews

Based on 5 reviews
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M
Myriam I.
great quality

super comfortable.

L
Lorna
Super comfy & good protection

These are super comfy and offer good protection overnight. The quality is really great. The only slight negative is I find the legs ride up a bit, but this may be because I need to size down. I got a M and I am a 10-12, the fit is generous so could have potentially gone for a S.

V
Verena K.
Fantastic product for overnight

Before I tried these i always had some leaks overnight and had to put a towel underneath me but since trying them i have had no leaks at all and do not need the towel at all.

12