Did you know 59% of women who lift experience gym mishaps like leaks, VPL, or wedgies?
The Gym Underwear You Didn’t Know You Needed
Say goodbye to leaks, lines, and discomfort. Designed for women who train, FitKnicks keeps you confident, comfortable, and supported... no matter how hard you push yourself.
if you struggle with
we made fitknicks for you
Let’s face it: leaks happen.
Whether it’s during a heavy lift, a high-intensity workout, or just a busy day, you deserve underwear that supports you without holding you back. That’s where FitKnicks’ Leakproof Underwear comes in.
Designed by women, for women, our leakproof collection is here to help you feel confident, comfortable, and unstoppable. With advanced technology and thoughtful designs, we’ve created underwear that works as hard as you do.
We're on a mission to open up the conversation about athletic stress incontinence.
70%
of female strength athletes experience SUI during training.
45%
of women over 30 experience SUI post-partum.
15ml
5-15ml is the average range of leakage volumes for athletic rSUI.
25%
Only 1 in 4 women seek out specific healthcare for it.
I’m Maddi, and I created FitKnicks after one too many workouts ruined by annoying underwear problems like VPL, rolling, and those “just in case” little leaks. FitKnicks are seamless and leakproof undies designed to disappear under tights, stay put through training, and help you feel comfortable and confident in the gym.