Merrell Women's Coldpack 3 Thermo Waterproof Side Zip Winter Boots - The evolution of one of Merrell's most successful winter boot franchises ever, these boots will keep you dry and deliver traction in any conditions mother nature can throw at you. Waterproof full grain leather upper Heavy-duty waterproof YKK zippers for easy on and off Shearling collar Protective and abrasion-resistant rubber toe cap 200g sythetic, lightweight, low-bulk insulation for warmth and comfort Cleansport NXT treated for natural odor control Merrell Air Cushion in the heel absorbs shock and adds stability Molded nylon arch shank Super Rebound Compound midsole provides durable shock absorption Vibram Arctic Grip All Terrain outsole designed to effectively extend the winter traction season Vibram XS Trek Evo outsole designed to provide optimal balance of traction and flexibility on wet surfacesSOLARCORE Aerogel insole provides underfoot superior warmth 100% recylcled fleece lining and webbing Style: J037396