Arm Sleeve9mm Hex Technology positioned at the elbow Arm compression maintains muscle warmth and prevents abrasions and scratches hDc Moisture Management Technology is all about cool and dry Machine washable dryable Includes one sleeve Color: Black, Bright Green, Carolina Blue, Dark Green, MGrid, Navy, Pink, Royal, Scarlet, Texas Orange, White Size: youth os, xs, s, m, l Stock Alternate: Youth available in Black only. Materials Used: 80% nylon 20% spandex