Teen Swimwear Tie Side Bikini Brief

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Aborbency: 40ml = 8 tampons or 8 teaspoons 

Our Tie Side Bikini Brief looks and feels like your regular bikini but with magic period protection built right in. Made from soft and stretchy Recycled Nylon, this bold print features our discreet, built-in, leak-proof technology that absorbs moderate-heavy blood and discharge. 

  • Fits and feels like your favourite swimwear, with built-in foam cups, comfortable under bust brand and self-tie shoulder straps that sit smoothly on teen bodies. 
  • Made from Recycled Nylon and elastane yarn that is soft and durable, with great stretch. 
  • Pairs perfectly with our period-proof Teen Swimwear Briefs. 
  • Pre-consumer recycled Nylon means less waste heading to landfill – and less energy use. 
  • Chlorine-resistant. 
  • Modibodi Teen Swimwear is designed specifically for younger bodies and is available in youth sizing.
  • Check our size chart to find your best fit. To activate your Modibodi's magic powers, wash before use.

Our swimwear is now available in a higher absorbency!


  • It has a two-layer gusset. Layer one consists of a uniquely designed Modibodi textured fabrication that hold up to 40ml without leaking. 
  • Layer two is a waterproof layer that sits between the absorbency layer and the outer layer for an extra barrier of protection and peace of mind.
  • Please note, our swimwear needs to fit snugly against your body at the leg opening to ensure the leakproof gusset technology can do its thing.
  • Made with our patent technology.
  • Gusset with new textured fabric has been lab tested with confirmed results to hold up to 40ml.

CARE: Rinse first, gentle cold machine wash, hang to dry, reuse, and repeat. Read our FAQs for more. 

Outer: 74% Pre Consumer Recycled Nylon, 26% Lycra Elastane - INTERLOCK WITH CHLORINE RESISTANT
Liner: 85% Pre Consumer Recycled Nylon, 15% Elastane
Gusset: 60% Polyester 40% Cotton

We're committed to creating thoughtfully-made apparel – from our reusable designs to our fabric choices, social impact and responsible supply chains. Read more here.


We work with trusted manufacturers, and continuously invest time and energy into nurturing our supply chain.

Circular design

We focus our design on using renewable and recycled fabrics - like Australian merino wool and organic cotton.


We're proud to create products for everybody, and champion uncomfortable conversations around periods, incontinence, pregnancy, sweat and more.

Care guide

Get the most out of your underwear

Wash your Modibodi before the first wear. This will activate the technology in the lining for maximum absorbency.


Rinse your used underwear in cold water after use <30° Don't soak, just rinse until the water runs clear.

Cold wash

Cold wash (now or later) In a delicates bag is even better. Avoid any fabric softener.

Hang dry

Hang dry. Reuse. Repeat. Easy done.

Washing and care
Hang dry