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Bumpers Briefs: Teen Period Underwear

Our period underwear is every tween and teen girls secret confidence-keeping armour. Leaks are kept at bay with our game-changing 'Bumpers', so she can focus on being her full, authentic self all day long. Our period undies are super soft, super stretchy, and super reliable, too. 

Crafted from bamboo, our undies are as gentle on the planet as they are on her skin.

Hypoallergenic and moisture-wicking, so goodbye to icky feelings and hello to all-day freshness.

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Period Underwear for Girls - Eltee Sydney -

Period Swimwear

Does teen period swimwear really work? 

Yes, Here's How!

"But how will I go swimming!?" It's one of the most commonly asked questions when a girl gets her period.

She can hit the pool or dive into the ocean waves even while on her period without using tampons (which often freak girl out until they're a little older), resorting to the awkwardness of a pad in the pool or missing out on the fun.

Our collection of period swimwear is designed with young swimmers in mind, ensuring that girls can make a splash any day of the month.

Why choose teen period swimwear?

Did you know that 67% of girls either ditch sessions or quit swimming because of their period? That's a staggering number. By choosing the right swimwear, you’re telling her that her period shouldn’t dictate her activities.

Pads in the pool? They're not the best mix—becoming soggy and moving out of place, which is the last thing anyone wants. Our swimwear is the antithesis of this scenario—offering leak-proof confidence with pool-ready, period-proof innovation.

Layers of super-absorbent, whisper-thin protection

Our period swimwear for girls is anything but ordinary.

With layers of super-absorbent, whisper-thin protection right where it's needed, there's no bulky, soggy aftermath to contend with. 

Then there's our regular sport swimsuit—the Grand Poobah of distraction-free designs with its open back for supreme freedom in the water. 

Every Eltee Sydney piece is crafted with the perfect fit and stay-put straps so girls can swim fret free.


Explore period swimwear by need

View all period swimwear advice

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Period Swimwear

Period Underwear Starter Kit

On average, a girl will need 4-6 pairs of period underwear to manage each cycle, depending on her flow and the length of her cycle. Perfect for heavy, medium, or light days.

We've created this bundle so you can buy enough to keep her protected, fresh and comfortable all cycle round and save some $$$ while you're at it! 

Wish we could be even more generous but, alas... codes can't be used with combos and bundles. 

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Full Cycle Bumpers Briefs Bundle - Eltee Sydney

Sport Period Underwear

Seamless sport period underwear engineered for movement and performance. Absorbs menstrual flow and bladder leaks, no matter how or how much you move. Ideal for dance, gymnastics, football, netball and everything in between.

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Sport Period Underwear

The Active All-Rounder Bundle

Say goodbye to stressful period days and hello to unstoppable confidence with The Active All-Rounder Combo. Perfect for girls who thrive in a mix of sports and activities, this bundle has everything she needs to tackle the action without limits. This exclusive combo includes:

  • UnderShortie – Designed for reliable, fuss-free protection under short uniforms like netball, hockey, and school skirts. It’s comfort meets coverage, so she can focus on the game, not her period.
  • UnderDance – Built to be invisible under leotards, high-cut dance costumes, and close-fitting activewear. With advanced leak-locking ‘Bumpers’ protection, wardrobe malfunctions are officially a thing of the past.
  • UnderSwim OG – The ultimate period-proof solution for the water. Whether she’s hitting the pool or catching waves, this is the Official Period-Safe Swim Underwear of Swimming Australia.

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The Active All Rounder Bundle - Eltee Sydney

The Starting Line-Up

The Eltee Sydney products we’d pick first. Performance periodwear made for swimming, sport, dance, school and everything else on the fixture.

Different products. Different jobs. Same objective: reliable period protection that keeps up.

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The Starting Line-Up
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