Nike Zoom Cage 3 Clay Men’s Tennis Shoe Men, Dark Grey, Size. lightweight, extra-durable stability. the nike zoom cage 3 clay men’s tennis shoe is our most durable, supportive tennis shoe; now lighter than its predecessor thanks to tough zonal overlays that add lateral stability for quick cuts. maximum durability rubber overlays where you need them most add lateral stability without adding weight, keeping your movements firm and quick. exceptional traction a herringbone outsole delivers excellent traction and durability on clay court surfaces. responsive cushioning nike zoom air unit in the heel offers responsive, lightweight cushioning to help you quickly return serves. more details external heel clip is efficiently shaped to secure the heel flexible support in the midfoot provides lightweight stability full bootie construction wraps your foot for a snug fit.