ZEPHYR GTX HI TF100% Polyurethane (PU)100% GORE-TEX Extended Comfort FootwearUpper height measurement according to DIN EN ISO 20347:2012: 200 mm Upper height outside: 210 mm Upper height inside: 175 mm Design according to DIN EN ISO 20347:2012: C (Boot Medium High)1240 g/Pair (UK 8)