Design:Designed for wear on hard court surfaces Removable insole In-Shoe Comfort:Inside of the mesh is reinforced where you need extra support while the outside has a thin, flexible overlay for extra durabilitySoft foam midsole has a Zoom Air unit in the heel for responsive cushioningFull-length foot frame on the lateral side helps stabilize your foot during quick cutsStretchy internal sleeve hugs your foot for a sock-like fitDurability &a; Traction:Herringbone outsole uses data-informed design to create top-notch grip without impacting your ability to slideRubber is removed in low-wear areas to keep weight at a minimumAsymmetrical lacing hugs your foot during lateral movementsMedial eye stays are covered for added durability while sliding