Comfort: 12°C (54°F) Comfort limit: 5°C (40°F) Extreme: -4°C (25°F) High performance, lower impact. The Rab Solar Eco bags are built with recycled fabrics and recycled Stratusinsulation. The Solar 0 is ideal for the summer mountain bothy goer and the globetrotting backpacker, with a wide shape for a comfortable night's sleep. These resilient synthetic bags are filled with 100% recycled Stratusinsulation, and lined and covered with a tough, 20D, recycled Atmosfabric with ripstop. Hardwearing, warm, and dependable, they are fast drying and cope with condensation and damp conditions. The Solar Eco 0 is insulated with a single layer of Stratusfor reduced weight and bulk. The localised quilting simply means that the stitching which holds the insulation in place has been minimised to reduce the chance of cold spots. Packing down to just 30cm x 16cm, its incredibly low bulk and stashable. Perfect for summer climbing trips, bivis in warm climates and backpacking adventures. The Solar