Polyester Imported Temperature Range: 3lbs spray boned cotton-filling with high-loft insulation cotton flannel lined adult sleeping bag is low limit rating approx 18°F/-5°C and fits temperature range 28-50°F/-2-10°C. perfect for keeping you warm and sleeping soundly throughout any extreme condition. Roomy and Portable: The size of the flannel sleeping bag is 82.7 x 31.5 inches, these sleeping bags are incredibly roomy for any adult 6'6" or less, great for tall guys and active sleepers, side sleeper who likes to move around. Folded and stored in its compression bag is only 5.3lbs very compact and easy to carry. Water Repellent & Ripstop Fabric: Outer shell are made from 220T ripstop polyester that washes incredibly well, protect against windy and wet weather prevent you from getting damp also durable for resists damage from stones, branches and other natural elements. Reverse Zipper: Double-sided zips provide outstanding performance for many years of use. Coupled with our anti-snag systems and draft tubes provide the best possible way to get in and out of an envelope sleeping bag, and the two zip sliders allow excellent venting options. Bessport focuses on the design and development of outdoor products,Making you a happy customer is our main goal.try it, and if you don't absolutely Love it, send us a message and we will Refund or Replace your Purchase, NO QUESTIONS ASKED !