ASICS GEL-SENSEI 3 Indoor Court Shoes A-TRUSS - Rigid heel component which enhances rear-foot stability. Personal Heel Fit - Memory foam in the heel which offers a personalised and more comfortable fit. Wet Grip Rubber - Designed to create greater traction on indoor surfaces. Magic Sole - 'Holes' in the bottom of the shoe grant superb breathability, keeping your feet cool and comfortable. Rearfoot and Forefoot GEL Cushioning - The ASICS GEL system is based on a special kind of silicon that enables optimal shock absorption. GEL units are strategically placed in the forefoot and midsole and designed to enable specific functions and positions.