The Alpine -29C/-20F Down is a sleeping bag from the brand Sea to Summit perfectly suited for extreme conditions.This model is part of the Trailblazer range, designed to offer lightness, reliability, and durability. The minimalism of the products also provides you with greater freedom and mobility during adventures in extreme conditions. With its streamlined mummy shape, high-quality goose down certified by the Responsible Down Standard and a fill power of 850 CUIN, it will accompany you on your adventures in the coldest climates for peaceful and comfortable nights. The down benefits from the Ultra Dry Down water-repellent treatment, which provides excellent resistance to water and humidity. The 10D recycled nylon construction prevents condensation from forming on the outer shell for increased comfort.The double collar and draft tube ensure optimal heat retention and promise maximum comfort even in severe cold. This sleeping bag features two closure systems, a main full-length zipper and a secondary one covering 1/3 of the length. This model will protect you from the cold down to -29 °C. This sleeping bag is an essential ally for your expeditions and bivouacs in extreme conditions!