Sorel's background is in super warm and quite heavy "Canada boots" - however, when you're not ice fishing or heading for the North Pole, you'll want lighter winter boots such as the Torino II. Small sizing. Choose one whole size bigger than usual. - Surface material: leather with a waterproof inner coating - Genuine shearling at the cuff prevents snow from entering - Liner made of wool - 200g/m² technical insulation - Outer sole: genuine rubber, resistant to hardening in frosty conditions - Detachable EVA insoles with a fleece top