Waterproof full grain leather upper. Metal hook and eyelets for added durability. Molded TPU heel counter for security. Heel pull tab for easy on and off. 100% recycled fleece lining. 200 grams Primaloft® Gold Eco Series synthetic insulation.  NXT treated to prevent odour. 50% recycled removable EVA foam footbed. Molded nylon arch shank. Merrell Air Cushion in the heel absorbs shock and adds stability. Lightweight EVA foam midsole for stability and comfort. Merrell sticky rubber outsole designed for winter optimizes traction over cold weather surface conditions.