Pearl Izumi Sun Knees Protect your knees from over-exposure to the sun with the Pearl Izumi Sun Knees. They'll feel like a second skin and provide optimal cooling and moisture management thanks to In-R-Cool(R) technology. The Pearl Izumi Sun Legs deliver UV UPF 50+ sun protection with no need to reapply. Features In-R-Cool(R) technology to provide optimal skin-cooling effect and moisture management when you perspire ELITE Transfer fabric with UPF 50+ Sun Protection and Ice-fil(R)Bio Viz(TM) reflective elements for low-light visibility Easy slip on fit Size (Inches/CM)Extra Small Small Medium Large Extra Large Length(garment measurement)14. 253615. 253916. 254117. 254418. 2546Thigh(circumference)19. 549. 521. 25542358. 524. 756326. 567Calf(circumference)13. 2533. 51435. 514. 7537. 515. 53916. 542 | Pearl Izumi | Sun Knees Men's | Size Large In White