Eclispion 4 shoes are currently the best Yonex shoes, providing very good stability and durability. The Power Cushion Eclipsion 4 shoes are designed to withstand the most aggressive movements on the court, while maintaining the comfort needed during long matches. Eclipsion 4, was chosen by Stan Wawrinka. The signature Power Cushion+ unit provides exceptional cushioning and rebound, while a Power Graphite layer in the midfoot maximizes lateral stability while reducing weight. The unique Yonex tread pattern is made of the Endurance Rubber II compound and performs very well on all surfaces.HELL CONTACT AND ROUND SOLE -The special design of the shoe significantly increases comfort when moving.FEATHER BOUNCE FOAM -New lightweight cushioning material designed to provide extra bounce with every step.ONE-PIECE OUTSOLE -One-piece outsole from toe to heel provides greater stability.HEEL STABILIZER -TPU is applied to the heel area to increase stability in the heel area during landing.3D POWER GRAPHITE DRIVE -An expansive 3D graphite sheet is inserted in the metatarsal area; increases stability and agility to push aggressively for faster footwork.POWER CUSHION -The Power Cushion system effectively absorbs the impact energy resulting from falling onto the pitch and transfers it to the next movement, the rebound. Compared to traditional urethane, Power Cushion provides three times more energy.ROUND SOLE -Round Sole ensures quick and light footwork on the court and guarantees maximum energy transfer to the movement performed.TOE ASSIST SHAPE -The system provides additional support for the big toe, as well as for the midfoot and heel. Prevents the foot from moving during sudden movements and changes of direction.DURABLE SKIN -The flexible DURABLE SKIN used in the upper part of the shoe stabilizes the foot, prevents lateral movements of the foot inside the shoe and accelerates leg work.SYNCRO-FIT INSOLE -YONEX Synchro-Fit – the insole allows for a better fit of the foot to the shoe, minimizing energy loss. It ensures greater fluidity of movement and faster footwork.POWER CUSHION＋ -By adding a special insert made of flexible resin, the existing Power Cushion system has significantly increased shock absorption by 25% and rebound by 12%.DOUBLE RASCHEL MESH -A special thin, light and durable mesh that ensures eight times greater air exchange and moisture removal.POWER GRAPHITE SHEET -There is a graphite plate under the central part of the sole, which increases stability and reduces the weight of the shoe. comfort for smoother footwork.