The Moab series has been highly popular for years. This winter model, the men's Moab FST 3 Thermo Mid WP, boasts the Vibram Arctic Grip outer sole, which offers more grip in winter conditions than many hiking boot soles. In addition the shoes have insulating fiber and wool blend insoles - plus a pleasant fleece liner. The Merrell Moab FST 3 Thermo Mid WP is a good choice for winter outdoor activities, walks, everyday errands, and light winter hiking. - Relatively narrow fit - not for users with wide feet - Waterproof - Fleece liner - 200g/m² insulation - Detachable wool mix liners (Kinetic Fit BASE) - Air cushion heel - EVA midsole The grip of winter shoes like this is somewhere between regular shoes and studded shoesremember to tread carefully on slippery surfaces!