underwear for activewear

Feel confident, comfortable, and supported during every workout
  • Anti-microbial
  • *
  • Seamless
  • *
  • Breathable
  • *
  • wedgie-proof
  • *
  • won't roll or bunch
  • *

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.

Leakproof Protection

Stay dry and confident with our spill-free designs.

Seamless Comfort

No VPL, no camel toe, just a flawless fit.

Advanced Materials

Antimicrobial, moisture-wicking, and durable.

No Bunching

Designs that stay in place during every move.

ABOUT

Hey 👋 I’m Maddi, the founder of FitKnicks and a gym enthusiast who’s had her fair share of awkward moments in activewear (not to mention plenty out of it).

I’ve competed in bodybuilding, powerlifting, and boxing—purely in a recreational sense—but enough to know the struggle of leaks, visible panty lines, and camel toe all too well.

After hearing my mum friends talk about post-baby workouts and their own challenges with incontinence, I realised these issues weren’t just mine—they’re something so many women deal with. So, I decided to create a solution.

FitKnicks is gym underwear that actually works. No leaks, no lines, and no wedgies—just confidence and comfort for women who train, move, and live in their gym gear. It’s my way of helping women feel amazing, no matter what life (or the gym) throws at them.