UK sizing. Winter boots with a grippy sole. This model is the choice for the active outdoorspersonthe fit is snug, and walking is smooth. Like many hiking boots, the Evo Ice model allows you to tighten the laces to different levels of tightness in the lower and upper sections. The upper material is high-quality leather, and a waterproof Gore-Tex membrane is integrated within the structure. Leather uppers and metal lace hooks are standard features of durable boots. When wearing high grip boots, remember that some conditions can still be treacherously slipperytake icy surfaces seriously! The sole material of these boots doesnt harden in freezing temperatures, and the Vibram Arctic Grip Trac sole features elements designed for enhanced traction. - Standard Lowa fit - Fleece lining - Gore-Tex membrane: fully waterproof yet breathable - Gore-Tex Warm lining for added warmth - High-quality leather upper - Monowrap structure enhances the fit - Lowa DynaPU midsole provides a stable