Efficient on the track
A supported pelvis keeps your ski stride from wandering, so more of every push goes forward instead of into correction.
Biathlon
Core Support Built For Biathlon
Biathlon asks for two opposite things: a full-gas ski and a completely still body on the mat. The Lock stabilizes your pelvic floor and core so your skiing stays efficient and your torso settles faster when it counts.
Why It Works
What biathlon demands of your core
The patented "D Band" supports the pelvic floor and locks the core — the foundation every other movement is built on.
Faster to settle
Coming into the range with a controlled core means less to quiet down before the first shot.
Never cold and wet
Active Cotton moves moisture without holding it, so your base layer doesn't turn into a cold sheet on the standing stage.
Wind where you need it
The Lock Brief with Wind Protection adds a front barrier for sub-zero days without adding bulk under a race suit.
In Their Words
"I love Lock Apparel's Active Cotton because of how it feels against my skin. During summer training, the breathability made me feel cooler and less sticky. I really enjoy the fact that there is no odor. I am basically incapable of wearing anything else now that I know what Active Cotton feels like."
Leilani Tam von Burg · Pro Biathlon Champion, Munich
Watch
See it in action
Professional Sprinter Monzavous "Rae" Edwards on Lock Apparel
The Technology
Patented, not just tight
The same platform every biathlon athlete on this page is wearing. You only need to wear The Lock once to feel the difference that separates it from any comparable short on the market.
The D Band
A patented band that supports the pelvic floor and holds the anatomy safely against the pubic symphysis — stability where compression alone does nothing.
Differentiated fabrication
The panels distinguish between muscle groups, so support lands where it's needed and freedom of movement stays where it matters.
Active Cotton
100% cotton engineered to move moisture away from the skin, resist odour, and stay soft without going heavy, sticky, or cold.
More Athletes
Same platform. Different arenas.
"As a pro ski instructor, having your hips tight and secure makes every turn more relevant. At high speeds and sharp carves your core needs to be strong, and The Lock does that better than any undergarment I've ever worn. The Active Cotton base layers were a real positive surprise — warm and dry all day, no chill, no itch."
Richard Vendrig · Coach, Toronto Ski ClubView →
"I'm a pro snowboarder so I'm outside most of the year — hiking the halfpipe, sweating, waiting to drop in. Lock Apparel base layers with Active Cotton eliminate that chill and any odor. Once you start wearing them you want to wear them every day."
Katie Tsuyuki · Pro Snowboarder, Canadian OlympianView →
"Every stride translates more force into the ground. I stopped feeling my hips fatigue at mile 18. The Lock keeps my core and pelvic floor stable the whole way — that's the difference between finishing strong and just finishing."
Ultra-distance runnerView →
What To Wear
Picks for biathlon
Questions