The new shortened length gives the Under Armour Player Arm Pad a better fit and more flexibility than its previous design. "Molded Skin" Technology reduces the weight, thanks to its ultra-thin, no-bulk construction. HeatGearŪ fabrication is at its best in weather from 75-100 degrees. The liner moves moisture away from your skin, while the mesh sleeve makes the whole piece more breathable. Built with high-impact, triple-density foam, dual adjustable straps, and an integrated grip pattern on the inside of the sleeve to prevent slipping. Sizing: M (for players 4'6"-5'6", 90-130 pounds), L (for players over 5'6", 130 pounds).