ASICS GEL-Netburner Ballistic indoor court shoes are an update to the former GEL-Volleycross® Revolution line by combining running characteristics with exceptional cushion and support for indoor court sports. Volleyball, squash and racquetball players will enjoy the enhanced stability and secure fit. A redesigned upper provides unmatched comfort with breathability and durability.Upper: Padded tongue and heel collar enhance comfort. Lace-up front offers an adjustable fit. Polyurethane and synthetic leather overlays offer enhanced durability and support. Air mesh provides flexible breathability.Midsole: Rearfoot and Forefoot GEL® Cushioning Systems attenuate shock during impact and toe-off phases, and allow movement in multiple planes as the foot transitions through the gait cycle. FluidRide® provides the ultimate combination of bounce back and cushioning properties with reduced weight and exceptional durability. Removable insole.Outsole: NC Rubber® outsole compound containing more natural rubber content than traditional solid rubber results in enhanced traction on court system. Trusstic System® reduces the weight of the sole unit while retaining the structural integrity of the shoe. Non-marking outsole.