Athletic Leakproof Bikini
High-performance underwear with an ultra thin, built-in panty liner. Absorbs up to 3 tsp of moisture (approx. 2 tampons), great for light bladder leaks and as back-up period protection.
FYI we also make leak-proof underwear for teens. Click here for Knixteen.
Period underwear for teens. Same great leakproof technology, now available in sizes for tweens and teens!
How It Fits
A classic mid rise silhouette with medium coverage through the hip and bum. The stretch tech means these will relax a bit more than the Everyday line.
Body: 77% nylon, 23% LYCRA®
Gusset Liner: 86% cotton, 10% spandex, 4% carbon
Gusset: Fresh Fix Technology®
Machine wash cold with mild detergent, do not bleach, lay flat to dry.
Tech To Take
Your Life Back
We're done with uncomfortable underwear. With 4-way stretch fabrics, your Knix move and mold to your shape.
Each Knix product is tested by 1000s of real women to make sure it's ready for your real life.
Moisture-wicking. Anti-odor. Quick-dry. Because we know what it takes to conquer your day.
Athletic Leakproof Bikini Reviews
Q & A
Q: Is there a way to sign up for a waiting list, or some kind of notification when XL is back in stock? Will they be back in stock?
A: Yes! You should have the option to sign up for a Back in Stock notification located under the product page.