It"s certainly not their only application, but knee warmers such as the Louis Garneau Knee Warmers 2 are popular at cyclocross races. Why? Because they strike an effective balance between providing the insulation you need at the knee and minimizing the total amount of fabric you"re wearing. After all, cross races are a messy affair in most parts of the globe, and all that clinging mud and water can weigh you down if you"re over-dressed. The Knee Warmers 2 are made of Garneau"s HeatMaxx fabric, a polyester/elastane blend with a brushed fleece back to retain body heat. A silicone gripper at the thigh keeps each knee warmer from sliding down and bunching at the knee. Flatlock seams ensure minimal friction against your skin, and a reflective logo on the shin adds some extra visibility. The Knee Warmers 2 also have a UPF/SPF rating of 50. The Louis Garneau Knee Warmers 2 come in sizes X-Small through X-Large and in two colors: Black and White.