Leakproof Thong
Double Undies® have you covered for leaks, periods & sweat.
A moisture-wicking layer keeps you feeling fresh, while the strategically placed padding on the coccyx adds comfort and helps absorb sweat right where you need it. Made with our Dri-flex™ fabric, they stretch to fit a wide range of body shapes and sizes without compromising support.
Oh—and they’re washable and reusable, making them as good for the planet as for your confidence. Each pair comes with a waterproof bag for life on the go because your gear should work as hard as you do.
Leakproof Thong
I now feel protected lifting heavy and can wear any color! Leakage is part of every day life for women thank you for creating this product!!!! 🫶🏻🫶🏻
These are very comfortable, leave no lines and caught exactly what I needed them to. No sweat patches and didn't take long to arrive. Brilliant!
I sweat alot and lose confidence after a hard workout because of it. Double undies are comfortable, secure and definitely help keep the sweat hidden. I feel so more confident wearing this brand of underwear....have tried many before that just doesn't stack up. Thank you 😊🙏
Highly IMPRESSED with the quality and it is highly absorbent! I am obsessed with this product. Available in larger sizes and size true to size chart. The best on the market. - thanks Double undies team -
Highly IMPRESSED with the quality and it is highly absorbent! I am obsessed with this product! Available in larger sizes and fits true to size description! The best on the market!!! Thanks team double undies.
Can confidently do all the jumping exercises my trainer gives me without the fear of leakage and having to wear a surf board pad
Fantastic product.. does exactly what it’s designed to do .. congratulations team 😊
Mum of 6 and got to trial out Double Undies for my recent strongwoman NZ nationals competition and they were a total game-changer. Comp days are long, intense, and full of heavy lifting, so comfort and support are everything. These undies stayed in place the whole time — no riding up, no awkward adjustments between events, just solid comfort that let me focus on my lifts.
The material felt breathable but still secure, which is huge when you’re sweating and moving under heavy weight. I especially noticed how they gave me that extra layer of confidence when bracing and lifting in front of a crowd — I didn’t have to worry about see-through moments or discomfort.
Pretty happy with my new undies. Got 1 pair to try out and think I'll probably get a few more pairs. More comfortable to wear than I thought they'd be and fit true to size (im a 10-12 on bottom and got a medium). They don't have absorbency right about the back but the padding at the front is pretty solid and gives confidence.
Not only is the fabric stretch and forgiving, it also stays put and gives ample coverage for my lady bits. The cut is perfect and accommodating for my booty/hips. I cannot express just how much I am in love with these undies! I need one in every color!
FAQs
Our undies are built differently. Designed for active women, Double Undies feature a patented “winged” leak-proof design with a double-layer absorbency system that holds over 30ml (that’s more than 6 tampons), giving you peace of mind through workouts, long days, or surprise leaks.
No. They’re designed to feel smooth and lightweight while providing targeted support.
These undies are super stretchy, so we’d recommend sizing down if you’re between sizes.
No. They’re made with smooth, laser-cut edges to stay invisible under tight workout gear.
Absolutely! They’re designed to be comfortable enough for all-day wear, working out, or not. Feel confident in & out of the gym.
Over 30ml. Equivalent to 6 Tampons.
Designed to help manage light bladder leaks during everyday activity. Individual results may vary.
- Main: 84% Nylon / 16% Elastane
- Inner Gusset: 100% Cotton
- Absorption Lining: 80% Polyester / 20% Cotton
- Leak Proof Lining: 100% Polyester
Wash before wear
Cold gentle machine wash
Do not use fabric conditioner
Do not bleach
Do not iron
Do not dry-clean
Our bag is made from 100% recycled plastic bottles — because looking good and being kind to the planet can go hand in hand. But it’s not just for looks — it’s designed to be practical too. After your workout, you can pop your Double Undies into this waterproof bag and head out without worrying about leaks or odours.
And if you want to keep things discreet? Just peel off the sticker — no one will know it's an absorbent undie.