Troy Lee Designs Speed Knee Sleeve

D3O is a non-Newtonian material that remains soft and flexible while you ride, allowing for full range of motion. Upon impact, the molecules lock together instantly to absorb and dissipate energy, hardening to protect the knee before returning to its flexible state.

They are designed with anti-slip silicone grippers on the interior cuffs to keep them securely in place. The seamless 360-degree construction also helps maintain a consistent fit throughout your ride.

Yes, the low-profile, 4mm thickness is specifically designed to fit discreetly under riding gear without adding unnecessary bulk. The seamless construction also helps prevent chafing during long days on the trail.

These knee sleeves are sold as a pair, so you will receive protection for both knees in one package.

These are engineered with a youth-specific fit, tailored to the proportions of younger riders. We recommend measuring the circumference of the thigh and calf to compare against the size chart provided on the product page to ensure the best fit.

These sleeves are excellent for trail and enduro riding where you need reliable impact protection without the weight of hard-shell guards. If your riding involves high-speed downhill racing or extreme terrain, you might prefer a hard-shell guard, but for most youth trail riding, these offer a great balance of comfort and safety.