Barricade Boost ShoesSeamless, lightweight tennis shoes for ultimate agility.Designed by Stella McCartney, these women's tennis shoes are built for Caroline Wozniacki's crafty, counter-attacking style of play. Built on boostâ„¢ energy-returning cushioning, these shoes are made to go deep into the third set. A seamless knit upper and lightweight TPU foil reduce abrasion in high-pressure areas and provide heightened stability.boost™'s energy-returning properties keep every step charged with an endless supply of light, fast energySeamless knit upper for ultimate in fit and comfortLightweight TPU foil welded to upper for enhanced durability in key abrasion areasEVA midsole with expanded TPU capsules in heelErgonomically shaped TPU heel counterADIWEAR™ 6 outsole offers the ultimate in high-wear durabilityImported