La Sportiva Wildcat 2.0 GTX Trail Running Shoe - Women's Grey/Red, 42.0 Synthetic Upper Material: AirMesh, Trail Cage, [reinforcements] UreTech Waterproofing: Gore-Tex Extended Comfort Closure: laces Sole: FriXion AT, Impact Brake System X-Axis Midsole: dual-density MEMlex, nylon shank, LaSpEVA