worn twice: for 30 & 90 min. box m9.5/w 11 The 4th-generation FUSIONREV features the identifiable inner bootie and asymmetrical laces found in previous generations, but has evolved to provide additional arch support, better gripping, and a softer fit with more bounce so players can push off stronger and prepare for the next shot. POWER CUSHION +, Yonex’s signature shock-absorbing material, is strategically placed in the forefoot and heel positions where the most pressure is applied. POWER CUSHION + technology is designed for faster footwork that transforms impact into energy. Compared to conventional cushioning (EVA), POWER CUSHION + has 28%*1 more shock absorption and 62%*2 more repulsion. TECHNOLOGY & MATERIALS Fusion Wing Increased support A winglet-like material is integrated in the upper-mid section as a firm support for your metatarsals. The inner skin helps arch support, maximizing stability during aggressive movements. Semi One-Piece Outsole Improved gripping By connecting the forefoot and heel area of the sole, the contact area with the ground increases, improving gripping. Feather Bounce Foam Softer feel with more bounce A lightweight material is incorporated in the midsole and combines with POWER CUSHION + to protect the foot at impact. Inner Bootie Natural, more gentle fit A one-piece tongue from the metatarsal to the heel is designed to wrap around the foot for a more natural moving experience. Asymmetrical Laces Less pressure on the top of the foot