• Free shipping on all UK orders
  • The UK's #1 leak-proof underwear brand
  • 60 Day Risk-Free Trial for new customers
Free shipping on all UK orders
The UK's #1 leak-proof underwear brand
60 Day Risk-Free Trial for new customers

Your Cart


You are £0.00 GBP away from free shipping!

You've got free shipping!

Your order will be sent when pre-order items arrive.

Biodegradable Full Brief

Moderate-Heavy Absorbency
£34.00 GBP

See on different bodies:

Onella 16/XL Jane 10/S

Biodegradable Full Brief

Moderate-Heavy Absorbency
Quantity must be 1 or more
SizePlease select a size to add to cart.
Size guide
Mix & match 5 pairs to save 5 %
More info
Buy 5
Save 5%
Buy 7
Save 10%
Buy 10
Save 15%
T&Cs apply Excludes bundle packs, gift cards, Give A Pair, Breastfeeding Singlet and selected styles.
Regular price GBP
£34.00 GBP
Sale price
£34.00 GBP

In Stock

Tax included.
Buy now pay later with
absorbency level


Flow: 15ml = 2-3 tampons or 3 teaspoons 
For: Moderate to heavy periods, light to moderate bladder leaks or discharge  
Feels:  Soft, luxe & comfy with trusted leak-proof protection  
Impact: Zero waste! A planet-friendly replacement for pads & tampons that’s also 97% biodegradable 

Feel good about your period and pee-proof undies with our Biodegradable Full Brief. 

An absolute game-changer, our biodegradable underwear doesn’t just help the environment by replacing disposable pads, tampons and liners with a trusted leak-proof lining...it’s made from innovative biodegradable materials designed to prevent textile waste piling up in landfills.  

They’re super soft and just as comfortable, reliable and effective as the rest of your Modibodi undies. Only... better for the planet! 

Free shipping on all orders!

Unworn, unopened garments can be returned


The Biodegradable Full Brief has a high waist and full coverage for a smooth, comfy fit backed up by superior protection – and sustainability.       

  • Replace disposable pads and tampons – and change the planet, one pair at a time 
  • Modibodi fits and feels like regular underwear, but has a slim patented hi-tech lining to absorb period blood, light to moderate bladder leaks, discharge and odour  
  • Made from 97% biodegradable materials, including biodegradable & compostable packaging = zero waste 
  • To biodegrade, cut off the waistband and discard into landfill, then bury the main pant in active soil. Both environments offer the perfect conditions for each component to completely break down. 
  • Rinse before use, gentle cold machine wash, hang to dry – then repeat. (No fabric softeners or stain removers please) 
  • Proudly owned and designed in Australia by real people with real leaky bodies 


CARE: Please read our FAQ for how to wash and care for your Modibodi. 


Outer – 70% TENCEL™, 30% Merino wool

Liner - 100% Merino wool / 100% bamboo viscose / 100% biodegradable PU laminate

  • Free shipping on all orders!
  • Orders are dispatched from our UK warehouse
  • Tracking details will be sent by email once shipped
  • We use Royal Mail
  • We offer a 30 day return period on unworn garments
  • Items marked as clearance or final sale cannot be returned
  • Underwear/swimwear returned must have been tried on over the top of underwear; if this is not followed, we may not provide a refund/credit
  • A credit or refund is provided upon receipt of your returned garment/s
  • Processing timeframes may vary; please allow up to ten business days
  • We suggest sending your return/s with tracking so that you know when your parcel has arrived to us
For more info, click here
To learn more about our 60 Day Risk-Free Trial for new customers, click here

Why do I need a Waterproof Bag?

Our Waterproof Bags were designed to hold the undies you’re not wearing, whether that’s the fresh pair you’re planning to change into, or the used pair you need to keep hold of until you’re able to wash them. Slimline and discreet, we love them in our handbag or school bag to ensure we’re never caught short.

When should I use a Laundry Bag?

Ideally, every time you wash your Modibodi, you should pop them in a laundry bag. This helps to protect them in the washing machine and will prolong their lifespan. 

Care Guide

Step 1. Wash your Modibodi before wearing them for the first time. This will activate the technology in the gusset for maximum absorbency.

Step 2. Rinse in cold water after use <30° Do not soak, just rinse until the water runs clear!

Step 3. Cold wash (now or later) In a delicates bag is even better!

Step 4. Hang dry. Reuse. Repeat! Go you eco warrior!

Step 5. Hold the fabric softener. This reduces the product’s function!

"Modibodi was the best thing that ever happened to me."

Sarah S.

Customer Reviews