Seriously Seamless Underwear

It's like you're wearing nothing at all (nothing at all...)

gym undies you'll actually want to wear

Tired of VPL, wedgies, and underwear that just can’t keep up? Meet FitKnicks Seamless: made for women who train hard and want their underwear to work just as hard. No thongs, no butt bulge—just soft, stretchy support that disappears under your gym gear and stays put through every rep, set, and sprint.

NO VPL

Seamless, no-show fit - designed to get rid of panty lines, even under tights

No Wedgies

These stay put. Won’t roll, bunch, or ride up, whether you're lunging or leaping.

Antimicrobial

Antimicrobial lining keeps things fresh (silver ion treated)

Moisture-wicking

Stretchy, sweat-wicking fabric for dry, breathable comfort

Why seamless?

Seamless underwear is a total game-changer for active women. Thongs might seem like the answer to visible panty lines, but they can dig in, shift around, and actually raise your risk of chafing or bacterial infections.

Going commando can be tempting, but it often leads to sweat, friction, and no protection from seams or gym equipment.

FitKnicks Seamless undies give you all the invisibility of a thong or going commando, but with real support, moisture-wicking comfort, and an antimicrobial lining that keeps you feeling fresh and confident.

Now you can train as hard as you want without having to worry about your underwear.