The Pearl Izumi Elite Thermal Knee Warmers are cycling knee warmers that extend the usable range of standard cycling shorts into cool and cold conditions. Constructed from a tight-knit, lofted thermal fleece made with 56% recycled nylon, 30% polyester, and 14% LYCRA elastane, they provide insulation and stretch for unrestricted pedaling. An anatomic, left- and right-specific fit prevents bunching through a full range of motion, while PI Dry C0 PFAS-free durable water-repellent finish sheds light moisture and road spray. Tight-knit lofted thermal fleece fabric offers insulation with breathability and stretch for cold and cool riding conditions Anatomic left and right specific construction conforms to knee movement and eliminates fabric bunching PI Dry C0 technology delivers a PFAS-free durable water-repellent finish Wide plush elastic binding with silicone grippers holds warmers in place without digging in BioViz reflective elements provide visibility in low-light conditions, reaching up to 100 meters Made with recycled content; 56% recycled nylon, 30% polyester, 14% LYCRA elastane