





PATENTED CORE STABILITY
The Only Short
That Locks Your Core
Worn by Olympians. Engineered in Canada around one patent that changed what an athletic short can do for the human body.
Three Pillars. One Patent.
The most impactful piece of
sports clothing of our time.
Core Support
The D-Band locks your hips and stabilizes your core in three directions, so power transfers from torso to ground without leaking.
Pelvic Floor Stability
The only short that physically lifts and supports the pelvic floor — putting your hips in the right position for winning.
Complete Leg Freedom
Support where you need it. Freedom where you don't. Your legs stay unrestricted to be the most explosive they can be.
The Technology
Patented Lock Technology
Core and anatomical support through smart engineering — for both sexes.
The LOCK™ and its patented "D Band" gives core support for both sexes. For men it supports the male anatomy, stomach and lower back while allowing freedom of movement; for women it supplies hip-hugging, butt-lifting engineering along with tummy and lower back support.
Both versions use specific fabrications engineered to differentiate between muscle groups — allowing maximum support, maximum comfort, and enhanced performance while reducing minor aches and pains.
The combination of unique fabrics and engineering makes the patented LOCK™ exclusive core support completely different than any other product on the market. Unlike compression shorts, they do not sag when they become wet or restrict your stride. The result is a more centered athlete with a stabilized core.
Centre Yourself. Stabilize Your Core.
You'll have more strength, more power, more energy, more freedom to move, to workout, to strike. Ask any ballet dancer, yogi, martial artist, even weight trainers and they'll all tell you the same thing: when you are centered and stable, you are a force. You'll perform better, last longer, recover faster.
Yusuf Omar, President & CEO of The System, describes it this way:
"The Lock supports the pelvic floor region and prevents you from losing pelvic floor stability, which in turn, helps you lift and move better. The Lock Core Compression Short, for men and women is a first of its kind. It's a garment, but think of it as a patented, engineered piece of equipment. For men, it holds all your anatomy in place so your hips, stomach and core are secure. For women, it pulls your tummy and hips in tight to your core, yet both versions leave your legs free."
Try the Patented Lock Technology for yourself and see what your potential really is.
PATENTED CLOTHING TECHNOLOGY
HOW IT WORKS.
The D-Band
A strong, engineered band of fabric runs along the waist and locks the garment to your hips — the anchor for everything else.
Pelvic Floor Lift
The D-Band continues underneath the crotch, lifting the pelvic floor into its natural, powerful position.
CORE STABILIZATION
With the hips locked and the pelvic floor supported, the core is stabilized in 3 ways, giving you the freedom to move through your legs to be the most explosive you can be, still while you're centered and stable.

Why Compression Isn't Enough
Every other short
squeezes. The Lock supports.
Standard compression shorts apply one type of pressure — they squeeze the legs. That's it. They do nothing for the core that drives every stride.
The Patented Difference
Three-Dimensional Support
- Multi-zone support: hips, pelvic floor, core
- Patented D-Band lifts and stabilizes
- Legs stay completely free to fire
- Engineered for the actual mechanics of running
Regular Compression Shorts
One-Dimensional Squeeze
- Single-axis squeeze on your legs
- No core or pelvic support
- Restricts stride at the hip
- Marketed as 'performance' — but only compresses

Olympic Track & Field · 10-Year Nike Professional
"I'VE NEVER SEEN ANYTHING LIKE IT, EVER. I'VE NEVER TRIED ANYTHING LIKE IT. AND I SAY THAT AS A 10 YEAR NIKE PROFESSIONAL ATHLETE. LITERALLY, WE HAD NO PRODUCTS THAT ACTUALLY DID WHAT THE LOCK DOES."
Video Gallery
See The Lock In Action
Highlights of The Lock in the field. For more videos showing how the patented technology improves performance, visit our YouTube channel.
Carlos Machado, Brazilian Jiu-Jitsu World Master's Champion talks The Lock
Voices From The Field
Used by the best
in each discipline

"The first thing I noticed was that my stability improved. I was able to dribble, stop and shoot with more control. That led to overall more confidence as I moved around the court. But the biggest benefit was late in game or practice when I got tired. I found that I didn't lose control and that I recovered quickly. Great product unlike any other compression shorts I've worn — and I've worn them all."
R. Shipley · Development Specialist, Dallas TX

"I tried the Lock underneath my uniform and it definitely made a difference in the field, but more importantly at bat. Having a stable core when going after pitches is completely fundamental. My swings are more consistent and my average is up 30 points. The shirts keep me cool in the heat and warm in the cold without any chill or stick, and they don't stink. Both products — 5 stars."
B. Hallen · Michigan

"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

"The Lock supports my core securely without sacrificing comfort — light, durable, dry through every workout, and zero restriction in my movement. As a boxer it's tough to find tops that fit around your shoulders without restricting your punches. Active Cotton doesn't get wet, sticky or heavy. Lock Apparel lives up to its hype and is 100% worth it."
Kingsley Alexander · National Golden Glove Gold Medalist

"As an athlete I've tried many compression pieces, yet they do not live up to The Lock. Squatting with The Lady Lock has really made a difference — I focus more on stabilizing my core because of the fit and compression around the mid-line. I feel more secure and stronger. I do not squat without it."
Lacey Van Der Meral · Burlington, Ont.

"As a figure skater my body temperature goes up and down on a regular basis, training in a cold arena for many hours. The Active Cotton kept me comfortable and warm, almost like a windbreaker, and then cooled me down just as quickly. It didn't restrict my movement in any way — I had full range of motion to perform at my fullest."
Jaeden Blewett · Junior Silver Medallist, Calgary Winter Club

"I've only ever worn the big synthetic brands — they get baggy and smelly. When I tried The Lock I was blown away at how dry it stayed even after a long workout or a 90-minute hot yoga class. The breathable material allowed my legs to have better range of motion, even late in the workout. The anatomical support is why it's patented."
Ryan Hunter · Bowling Green U. / Kansas City Chiefs

"Lacrosse is like running a long-distance race — but you're twisting and turning to get position or shoot, and that means your core has to be engaged. That's what The Lock does over just regular compression shorts. I've also noticed faster recovery the next day."
B. Mitchell · Toronto, Ontario

"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 runner

"There are a thousand different ways to be uncomfortable on a motorcycle, and in 38 years of riding I think I've experienced all of them. Nothing has increased my comfort as much as Active Cotton and The Lock shorts. They keep everything elevated, cool and dry — long, comfortable days in the saddle."
Jason Thorpe · Professional Motorcycle Journalist

"Heading up for another ride with The Lock — great moisture control, super comfortable even hanging out after the ride. No wet diaper feel post-ride. We rode in a window of showers and strenuous climbs and I never felt overdressed. Bottom line: all great stuff."
Carl Baril · Fanatyk Co., Whistler BC

"I love the Active Cotton by Lock Apparel. It gets rid of your sweat and lets your skin breathe — amazing performance. I recommend these to anyone who wants the best possible training experience. Take a look at The Lock too: secure and comfortable."
Carlos Machado · BJJ World Master Champion, Dallas TX

"Lock Apparel's Lock supports the pelvic floor region and prevents you from losing pelvic floor stability — which, in turn, helps you lift and move better. Like a glass of water or a pair of running shoes, The Lock is that relevant."
Yusuf Omar · President & CEO of The System, North York

"The Lock clothing made my training a lot more comfortable. I really noticed a difference when I went back to normal gear. It even corrected my form while running — forcing me into a more suitable stance. The bra was so well-fitted I was almost unable to tell I was wearing it. Everything is really great."
Maddy Penman · Florida State

"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 Club

"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 Olympian

"As an ex-Olympic hurdler, I'm amazed that a pair of running shorts could actually enhance my performance. After only 2 weeks the small aches and pains that are just part of being an athlete have miraculously disappeared. The Lock is truly a performance-enhancing piece of gear that every athlete should add to their arsenal."
Mark McKoy · Olympic Gold Medalist, 110MH — Barcelona 1992

"From spike serving to defence and passing, The Lock keeps you stable. The core compression aspect keeps your back and hips engaged so your upper body can perform. It's also helped my lower back from the tiny aches of repetitive drills. Once you get used to it, regular compression just doesn't measure up."
Mike Chaloupka · Ex-Canadian National Team, European Pro

"I'll keep this simple. Once you train and compete in The Lock, you just feel stronger, meaner, more centered and tighter. Keep these away from my competition — I want the edge to myself."
Ainsley Robinson · 2004 Canadian Olympian
Hover to pause
ALL SPORTS. ONE PLATFORM.
PROVEN ACROSS EVERY SPORT.
From basketball courts to ultra-marathon trails — The Lock performs across every sport.
His & Hers
Engineered for him.
Engineered for her.
Same patented Lock core-support platform. Two designs, anatomically tuned — so every athlete gets the same locked-in stability built for their body.
The Lock
—- Patented D-Band pelvic floor support
- Holds male anatomy safely against the pubic symphysis
- Differentiated fabrications per muscle group
- Locks the core for more power, more stride freedom
The Lady Lock
—- Patented core support engineered exclusively for women
- Hip-hugging, butt-lifting and tummy control
- Differentiated fabrications for targeted support
- Short and tight designs — train and race in either
Shared DNA
- —Patented Lock core-support platform
- —Pelvic floor stability
- —Complete leg freedom
- —Breathable Active Cotton
The Lock · Men's Core Compression Short
Get your shorts.
Get your new mark.
One short. Patented core support. Complete leg freedom. Wear it once and you'll understand why Olympic athletes refuse to train without it.
FROM THE BLOG
Worth a Read

What is Active Cotton?
Nature's perfect fabric, enhanced. Why Active Cotton outperforms synthetic technical fabrics for everyday training.
Read
Dr. Sean Fletch Discusses Lock Technology & Relief from Back Pain
Watch as practicing chiropractor Dr. Sean Fletch explains the science behind Lock technology and how it delivers relief from back pain.
Read
Importance of Core Support
Core stability is the ability to create extremity movement without off-setting the spine or pelvis. Here's why it matters.
Read