New Other 2XU Men's Medium Compression Calf Guard Sleeves White Silver Medium:White Silver Advantages of the Harrow ADVANCE 300IAttack stay comfortable Advantages of the Harrow ADVANCE 300IAttack Lacrosse Shaft: very strong provides optimal grip rubberized surface for additional grip internal ribs allow for morge strength and stability clutch grip's concave edges provide the player with incredible handling equipped with thicker carbon graphit material for increased durabilty the sleek white making the calf guards easy to fit under a wetsuit They work to stabilize the calf muscles and limit the muscle oscillation that can cause shin splints and soreness as you run or ride