Louis Garneau CB Carbon 2 Short - Men's Black / Red Medium CB Carbon + LYCRA fiber: This fabric offers great compression and antistatic properties and helps improve blood circulation. Coldblack: Reflects UV rays to reduce heat build-up even on dark textiles Ergonomic fit: Pre-shaped to fit and support the body in motion Elastic waist with drawstring Seamless inner leg: Reduces bulkiness and excess material that causes saddle bunching Aero lazer band at thigh: Laser-cut, smooth transition to improve aerodynamics and muscle support