Check the listing for details. DURATON Mummy Sleeping Bag 20 Degree Weather, Lightweight with Compression Sack. Condition: New with tags. Listed at 69.99 USD. WHAT DOES THE TEMPERATURE RATING MEAN? The rating technically shows consumers the minimum temperature for survival if they are in full thermals AND on a sleeping pad. Obviously, that doesn’t sound very comfortable so as a rule of thumb you should add 10-15 degrees to the rating for a minimum “Comfort Rating” temperature. Keep in mind that “comfort” is relative from one person to another and you still need to wear full thermals (and maybe even a sleeping pad) at those temperatures. Example: A 20F sleeping bag is likely comfortable for camping in areas with higher than freezing temperatures WHY IS DURATON BETTER? 300 GSM Insulation 300 Grams per Square Meter (GSM) Hollow Fiber Insulation means your sleeping bag has dense fill (some bags are only 200 GSM or less) that will keep you warm even if it gets wet. Durable Water Resistant Shell 210T RipStop Nylon shell means your sleeping bag is strong. It is very hard to puncture, but if it does, the hole will not run or expand. Shell is treated with Durable Water Repellent (DWR) which makes sure you stay dry even in wet weather. Warm Design Brushed Flannel lining makes you feel like you are at home in your own bed. The soft, comfortable flannel lining adds yet another layer to keep the warmth inside the bag. Multiple Draft tubes traps warm air inside the bag instead of escaping from areas near the main zipper or the face opening. Both Bags Included When backpacking, small size is essential. Because of this, we have included a small 15L compression bag. This stuff sack will fit comfortably into most hiking packs. However, insulation compressed for an extended period of time can damage the effectiveness of the fill. We recommend using the 35L Storage Bag for home storage between usage. Your Purchase Helps Our Veterans Duraton donates 10% of our proceeds to a charity that helps disabled veterans get the healthcare services they deserve.