For outdoor enthusiasts who value a comfortable sleeping bag with plenty of freedom of movement, but who don't want to compromise on lightness and performance. The components of the sleeping bag are almost all made of polyester, which means that apart from a small percentage, they are single-grade and therefore completely recyclable. This means that the entire product can be recycled and used to create something new. In addition, the bluesign certified inner and outer material is made of 100% recycled polyester and PFC-free. The Exosphere thus makes a clear statement in terms of sustainability. The elastic ThermoStretch construction seams allow full freedom of movement. The entire sleeping bag construction can be stretched by 25% in width and at the same time hugs the skin. This reduces the amount of air to be heated between the body and the sleeping bag and makes it easier to keep your own body warm. To ensure that the sleeping bag offers the optimum comfort temperature in every sleeping position, the Exosphere is filled identically on both the top and the bottom. In addition, the elaborate shingle construction of the filling material prevents the formation of cold bridges and ensures perfect insulation thanks to the multiple overlaps.