New McDavid Calf Sleeves, Black, 2 (Pair) Antimicrobial technology Small also has a crack in it. An all around great deal GLDS3003 OS Green An all around great deal Its a maple bat with a natural raw barrel and a black handle Power Brigade XL Series Designed to stabilize and reduce fatigue to lower leg muscles hDc Moisture Management Technology keeps calves and feet cool and dry Specialty yarn makes the sleeves dry quick Antimicrobial technology Suggested wear time: 4 hours max or for duration or game run Calves benefit from increased blood circulation due to Targeted Compression Technology HDc Moisture Management Technology is all about cool and dry Suggested wear time: maximum of 4 hours or length of game run