ASICS LADY GEL-ROCKET Indoor Court Shoes Trusstic System - A plastic bridge located under the foot arch which provides strength and stability without loss of flexibility. Also helps to control torsion. Visible Forefoot GEL - ASICS GEL is a silicone-based cushioning system designed to meet the needs of both professional and recreational athletes. Forefoot GEL reduces the loading forces as the foot moves into propulsion, improving performance and minimising the risk of injury. The GEL is left exposed in the forefoot of this shoe. Profile Sockliner - A removeable sockliner which provide extra comfort with its soft material. California Slip Lasting - This upper is stitched around the EVA board and directly attached to the midsole for better stability and ultimate comfort. Non-marking rubber outsole - Very grippy rubber which is non-marking, so it is suitabe for indoor use.