Women's The North Face Sierra Mid Lace Waterproof - Almond Butter Lightweight, waterproof and insulated, the Women’s Sierra Mid Lace Waterproof Boots combine full-grain leather with an engineered rib knit for aesthetics and comfort. Faux-fur top collars are the finishing touch on this cold-weather classic. DETAILS: Waterproof, seam-sealed construction Rustproof metal hardware 100g 100% recycled synthetic insulation Minimalist faux-fur top collar OrthoLite® sockliner Sole Unit| Single-density, molded-EVA midsole Rubber wrap in the toe for additional durability and protection Surface Control™ rubber outsole optimized for winter conditions Upper: Waterproof, full-grain leather upper At The North Face®, we purchase 100% of our leather from Leather Working Group–certified tanneries