In need of warm feet? Around base camp after the ascent, in a hut after a long cold day of hiking in heavy boots or after a sunny day of backountry skiing. The ankle high flexible and soft booty snuggly fits your feet thanks too an elastic heel strap and cuff and should be in your pack at all times. The 0.4 cm EVA inner sole give you the feeling of walking barefoot but offers enough insulation. They let you enjoy the sunset on the veranda of your hut wrapped up in a quilt. The outer sole is of environmentally friendly TPU material, should be stored dry. Environmentally friendly C-0 proofing is PFOA, PFOS and PFC free. Fine silky high grade Nylon 6 fabrics made in Taiwan. Includes 2 elastic bands for easy storage. "these boots are made for hut-walking...!"