New Mizuno Women 8.5 Wave Voltage Indoor Court Volleyball Shoe Black Silver Blk Softrball Mesh UA ClutchFit upper flexes the Truvativ ISOflow 3 Mesh UA ClutchFit upper flexes under pressure Anti Shock Construction for less vibration and improved feel Ventilation system reduces heat and humidity build up inside the shoe during performance D Flex Groove: Diagonal flexible groove Textile and Synthetic Imported Rubber sole Shaft measures approximately low top from arch Mizuno Wave: The Mizuno Wave plate disperses energy from impact to a broader area providing a stable platform and a superior cushioning DynaMotion Groove: Increased flexibility and agility while minimizing forefoot instability