Key Features: POWER CUSHION The YONEX Power Cushion absorbs shock and 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. POWER CUSHION + A raw egg can be dropped from 12 meters above the POWER CUSHION+ mat, rebounding to a height of 6 meters without breaking. **Tested by YONEX** POWER CUSHION™ is a trademark of Yonex Co., Ltd. *Research by the Japan Vehicle Inspection Association & Boken Quality Evaluation (based on JIS standards) in comparison to conventional cushioning material (EVA). Double Russel Mesh Double Raschel Mesh is an ultra-fine mesh that is extremely lightweight and durable. It provides eight times more air exchange for releasing moisture than ordinary mesh fabric. Durable Skin Light Combining rubber-like flexibility with the stiffness of hard plastic, the polyurethane-based Durable Skin Light lets you play light on your feet while maintaining a robust fit. Synchro-Fit Insole YONEX’s new Synchro-Fit Insole construction allows a closer fit between shoe and foot, keeping power loss to an absolute minimum to achieve smoother movement and quicker footwork. Compared to conventional footwear, the mid-to-heel area on the insole is lifted to provide a closer fit between the shoe and the foot. Holding the heel more firmly against the insole reduces the gap between the shoe and the foot, improving comfort and ensuring the foot does not slip forwards inside the shoe. 3D Power Graphite A 3D Power Carbon plate is inserted in the midsole, reducing weight and reinforcing your landing stability. Toe Assist Shape A toe-centric design that cuts down on pressure in the big toe and offers improved support at the mid-foot and heel for a stable fit. Power loss is reduced, allowing for swift footwork. Round Sole The YONEX Round Sole is designed to provide all-around support for quick and smooth footwork. The Round Sole ensures smooth movements and the transfer of maximum energy.” What type of midsole and outsole does the shoe have? These shoes have a synthetic resin midsole and a rubber outsole.