Asymmetrical fit secures and supports the foot, giving greater stability for faster, more accurate footwork. This shoe is built for stability, and fantastic durability. Packed with technologies including Quattro fit, Flexion Upper, Durable Skin and 3-Layer Power Cushion to ensure you are better than your best on court.Featuring Power Cushion technology: a lightweight shock-absorbing material that gives comfort, Power Cushion:*Absorbs shock and reverses impact energy*Smooth energy transfer into next movement*3 times more shock absorption than UrethaneIncluding the 3-Layer Power Cushion: higher density top and bottom layers help the 3-layer Power Cushion absorb 30% more shock than the original Power Cushion. Converts shock energy into power for fast and light footwork.The shoes Flexion Upper asymmetrical upper design gives a better and more comfortable fit. Eyelets in the upper shoe follow the curved shape of the instep, hugging the foot and allowing all of the stress on landing to be absorbed through the toes and instep giving you confidence in you footwork.Flexible Durable Skin retains the shape of the upper shoe to help prevent any lateral movement of the foot.The Quattro Fit System from YONEX addresses the four key areas that impact on fit. Designed to reduce the excess space at the front of the shoe that is created by the smaller toes. Shaped shoe technology improves grip and power transfer when accelerating or stopping.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.