The light weight and breathability of the waterproof Scarpa Hydrogen GTX doesn&';t mean this is a wimpy noodle shoe for easy trails. This is the nimble shoe of choice when hiking rugged trails. Superb ventilation with GORE-TEXA(R) SurroundA(R) Technology TPU reinforcements provide top level lateral support Rubber toe cap VibramA(R) rubber outsole Scarpa Size Chart EU Sizing US Men&';s US Women&';s 34.5 / 35 3 4