Traditional 75mm cross country boots are becoming ever more difficult to find, especially if they&';re a general touring boot instead of a goliath tele type boot. Trust Alpina to honor tradition, even as they develop new designs and features in their other XC boots they come through with new 75mm boots. The Tourer Free 75 isn&';t a big step farther than Alpina&';s earlier 3-pin boots but it does refine the fit and materials to ensure a better skiing experience. Once a pinner, always a pinner! Compatible with 75 mm (3-pin) bindings with a bail height of 12mm Synthetic upper needs no break in time Thinsulate insulation Upper material backed with Alpitex waterproof and breathable membrane to help keep feet dry Alpina Size Chart EU Sizing