A shorter Puffin, for less arctic conditions. Retaining the waterproof, board lasted leather construction and 200 gram insulation, the Puffin Mid is still one tough bird. An In-Board compression molded footframe and integrated Air Cushion midsole makes even the coldest winter landscape feel like a wonderland, while the Penguin sole walks all over it. Board lasted construction. Full Grain Waterproof Leather/Waterproof Nubuck Upper/. Water Resistant Pigskin Leather. Protective Rubber Rand. Collar Trim Wool. Primaloft 200 grams. Polartec 200 grams with Aegis Antimicrobial Treatment. In-Board Compression Molded EVA Footframe with Integrated Merrell Air Cushion Midsole. Merrell Penguin Sole Sticky Rubber. Comfort Range to -25F/-32C. Available Colors Black, Tan.