Whether as an insulating layer or outer layer, this down jacket will keep you warm in the harsh conditions of the mountain while offering the lightest possible form. It achieves its incredible warmth-to-weight ratio thanks to an ultra-light and durable recycled nylon shell with a weather-resistant coating, as well as responsibly sourced 850-fill hydrophobic down filling that insulates even in wet conditions. Carefully placed, synthetic filling provides warmth in areas that need to withstand heavy wear. With its minimal weight and packability, you'll take the Taiss IN Hooded Jacket on tour without hesitation.