Leakproof Cheekini 2.0
Our bestselling Cheekini, upgraded.
From $24.50 AUD a pair when you bundle
Shop Cheekini
Leakproof Underwear and Seamless Underwear for the Gym
Won't roll or bunch 😍
Wedgie-proof
No VPL
Free AU shipping over $100
Fast dispatch from Brisbane
Moisture-wicking
pick your fix
The line-up
Leakproof Briefs
Full coverage, 20 to 25ml light leak protection.
From $24.50 AUD a pair when you bundle
Shop Briefs
Seriously Seamless Undies
No-show without the thong. Anti-wedgie, antimicrobial.
From $16.80 AUD a pair when you bundle
Shop SeamlessThe gym underwear you didn't know you needed
FitKnicks is underwear designed for women who train and don't want to stress about leaks, lines, wedgies or undies that simply don't move with your body. With FitKnicks, you can focus on your session, not what's happening under your leggings.
Which style is right for you?
for light leaks
Leakproof
Supports light gym leaks, 20 to 25ml, through heavy lifts, jumps and sprints. Train hard. Feel covered.
Choose this if you:
- Stress about leaking when you lift, jump or run
- Want leak protection without the VPL
- Need moisture-wicking undies made for movement
for no-show comfort
Seriously Seamless
No-show without the thong. Anti-wedgie, antimicrobial, and full-coverage designs.
Choose this if you:
- Want to ditch VPL under your tights
- Hate thongs (and wedgies) with a passion
- Aren't stressed about leaks, just lines
Let's face it
Leaks happen.
(and you're in very good company)
Athletic SUI (stress urinary incontinence) is when small leaks happen under pressure: heavy lifts, jumps, sprints, skipping or a big laugh. It's common in sport and postpartum, and it affects strong, fit women of all ages.
70%
of female strength athletes experience SUI
45%
of women experience SUI postpartum
Train hard. Feel covered.
Nice to meet you.
I'm Maddi. I've spent much of my time (recreationally anyway) in bodybuilding, powerlifting and boxing. After years of searching for underwear that solved the challenges women at the gym and in strength sports face, and coming up empty, I decided to build it.
FitKnicks is underwear designed specifically for activewear, so you can focus on your training, not what's happening under your leggings.
-
Fast dispatch
From Brisbane, Australia
-
Hassle free returns
On unopened pairs
-
Free express shipping
On orders over $100 AUD in Australia