The shell is impregnated with Bionic-Finish Eco. This water and soil repellent technology is PFC-free and environmentally friendly combined with better permanence and sustainability. The Hyperion-5 is a high-quality 3 seasons mummy sleeping bag for trekking and touring. It has a elaborate Dura Loft 3D spiral filling with a 4-layer construction and thermally sealed for ultimate insulation. Dura Loft 3D Spiral is High Tech lightweight Polyester fibre mix with excellent thermal performance; it can be compressed easily, is durable, maintains its warmth properties even in moist conditions and dries quickly.
The cuddly shell and lining fabrics are made of high-quality, light-weight 40D ripstop nylon. The bottom is seamless preventing thermal bridging. The sleeping bag features an adjustable 3D hood, a 3D zipper baffle with padded windstopper at zipper end, an adjustable shoulder collar, an anti snag guard and an ergonomic foot box ; the auto-lock zipper prevents the bag from opening while sleeping. The Hyperion comes with a quality compression bag shrinking the packed volume. Maximum user height is 195 cm. Machine washable at 30°C.