Medium Absorbency: absorbs about the same as 3-6 tsp, 1-1.5 regular pads, 2-3 super tampons, or 0.5-1 menstrual cups; ideal leakproof swimwear bottoms for moderate flow period days, as well as protection against light bladder leaks and sweat. Full Butt Coverage: confidently wear and swim in your period swim bottoms without risk of period being seen, fully lined fabric with non-dig leg opening. UPF 50+: protect your skin from the sun all day long with your menstrual swimwear bottom that is as thin as regular swimwear and does not swell in water. Machine Washable: Machine Washable and Reusable with Knix’s FreshFix Technology Gusset, containing 3 layers of performance fabric that keep you fresh and dry with rapid absorption. About Kt by Knix: with 10+ years of experience, Knix's products are lab-tested and wear-tested. Knix was launched to to transform an underwear market that had too much frill and not enough function. Introducing Period Swim Bikini Bottom, which holds about 3 regular tampons or pads worth of blood! These incredibly comfortable and machine-washable period swim bikini bottoms that allow you to swim with confidence. These bikini bottoms have medium absorbency and are built to be thin, subtle, and feel just like regular swimwear. Wear it alone on light days, or with a tampon or menstrual cup on heavy days. The Period Swim Twist High Rise Bikini Bottom is the perfect solution to swimming on your period. These bikini bottoms have a super discreet liner, are bulk-free, and let you rapidly absorb moisture and blood to keep you fresh and dry all day. And, best of all, they are simple to wash. Simply machine wash on cold and lay flat to dry. These bottoms have a super absorbent gusset that locks in blood without leaking or swelling in the water. How? It’s thanks to three layers of leakproof technology. First layer: A silky-smooth layer that sits comfortably against the skin. Second layer: Holds about 3 regular pads or tampons worth of blood. Third layer: A secure, liquid-resistant layer that prevents leaks. What else do these super period swim bottoms do? They have a classic bikini cut, medium bum coverage, wide crotch, a super discreet liner, 50+ UPF protection, and are seawater and chlorine resistant. It’s time that all of us lived unapologetically free. Free from judgment. Free from self-doubt. Free to be yourself. That’s why all our products, from the most comfortable wireless bras to super absorbent underwear, are designed to make you feel more comfortable in your own skin. Using patented technology, cutting-edge processes, and human-centric design, we’re creating products unlike anything you’ve ever worn. Whether it’s lightweight anti-chafing shorts, wireless bras that are cute and supportive, or overnight period protection, we want you to be able to find something that transforms how you feel.