UA Women's Highlight Ace Shoes UPPER: Two-way stretch material built into the collar provides extra stability and comfort for on-court movements. Open mono mesh for breathability. Unique fit system using webbings to provide extra stabilityfor lateral movement. Tongue and vamp is open mesh. PU toe cap forabrasion resistance. MIDSOLE: Charged Cushioning crash pad under the heel. OUTSOLE: Rubber outsole and herringbone traction pattern withstrategically placed diamond shaped insets for control and traction.