Boot 8" made of water resistant and breathable Ultimate full grain leather. The BOA® Fit System delivers a fast, effortless, precision fit. Breathable and waterproof GORE-TEX membrane lining and Thinsulate® B600 thermal insulation. Dual component sole Icon Pu-Rubber Vibram® Fire&Ice SRC HRO: direct injection Esolight 1.0 midsole with the insertion of Vibram® Fire&Ice rubber outsole a special compound developed for extreme situations, providing traction and support in both low and high temperatures. HRO heat resistance up to 300° according to the EN 20345 standards. Maximum support and stability thanks also to TPU protective element applied on the heel. PZX fiberglass toe cap and perforation resistant Txzero insole made of ultimate textile material, offering outstanding lightness, protection and flexibility.