ASICS GEL-PROGRESSIVE Indoor Court Shoes DuoMax - In the midsole is positioned to enhance support and stability for short sprints and turns. Rearfoot & Forefoot GEL - Cushioning, this shoe absorbs impact shock upon landing and take-off, and allows easy forward and sideways movement. Personal Heel Fit - Adds a line of memory foam in the heel to create a snug, personalised fit. Outsole - ASICS High Abrasion Resistance rubber to make it more durable.