When nighttime temps start to get close to freezing, stay warm with the Haglofs Lupus 3C Synthetic Sleeping Bag. This ergonomic trekking mummy bag features Tri Fusion insulation for lightweight warmth, along with plenty of technical features to help you on your adventure. The mummy shape reduces bulk when packed and stays close to your body for maximum thermal efficiency. Anti snag tape ensures the opening zips smoothly, and elastic adjustment at the collar lets you get the fit to your liking. An internal mesh pocket stores items you want to keep warm, such as batteries or fuel canisters, and the pillow pocket keeps your head cushion from ending up on the other side of the tent at night.