Butora Endeavor Tight Fit Climbing Shoe - Women's Fully lined with 100% organic hemp fabric to minimize stretch while resisting odor development Moisture-wicking split-leather foot bed for comfort and custom fit to your toes 3D injection molded full lengths variable thickness polyurethane midsole for torsion rigidity and precision edging. Super sticky 100% butyl Butora F5 rubber sole. Size up half-size for a tight, aggressive fit, or full-size for more comfortable fit.