Compressport r2 v2 calf guardsthe brand new r2 v2 calf sleeve from compressport keeps the outstanding features of its predecessor such as a seamless multi gradual compression extreme durability and comes in a variety of colours it has been freshened up with 360 degree branding and new k protect technology the compressport r2 was the number one calf guard worn at the ironman world championships in kona the compressport r2 calf guard boosts your venous return reducing the accumulation of toxin