YONEX LUMIO 3 MENS ALL COURT TENNIS SHOES DARK GUNSurface All Court Weight (per size) 290g 10. 2 oz per size 26. 0 cm shoe Outsole Rubber Sole (Endurance Rubber) POWER CUSHION Shock Absorption The YONEX Power Cushion absorbs shock then reverses the impact energy for smooth transfer into the next movement. Compared with urethane, the YONEX Power Cushion construction provides 3 times more shock absorbing power. When dropped from 7m above a Power Cushion sheet, an egg will bounce back 4m without damage.