Looking for a Mummy sleeping Bag that keeps you warm and cozy in cool weather. Our team of designers, who are all backpacking enthusiasts, designed our Decathlon Forclaz Trek 500, 41°F, Cold Weather, Fiber-Filled, Compact Lightweight Camping Mummy Sleeping Bag, Yellow. This extremely compact & light sleeping bag has wide optimal temperature range and is Water-repellent! Sleep in comfortable temperature of 41°F/5°C and a minimum temperature limit of 32°F/ 0°C with the 2 3/4 zippers and 2-way slide for heat management ventilation to best suit you. Polyester fill made of 70% recycled polyester fibers. Includes 5-year warranty!