Compressport's R1 Calf Sleeves provides 360 degree compression during exercise, limiting vibrations and reducing muscle damage and fatigue. The updated fabric is lighter than previous generations and easier to pull on, while the ergonomic seamless design is comfortable and doesn't move during effort. The sleeves can conveniently be worn under a wetsuit during a triathlon, and its fast drying properties ensure it never feels heavy around your calves.