Product DescriptionTwo Side ZipperThis sleeping pad allows you to closure the sleeping bag while lying inside. With two-side separating zip on both sides, it will be very convenient for you to get in and out of the sleeping bag.Premium Down Sleeping BagThe backpacking sleeping bag is made up of ultralight 650FP white duck down 90/10 filling, which is nature's best light insulator with the highest warmth-to-weight ratio Also, this sleeping bag is equipped with a vertical lining structure, make the feathers more fluffy, keep you warm and insulated all night. The upper extreme Limit of this sleeping bag is 16/-9, the lower Limit is 39/4, and the comfort limit is 48/9.Packs Down TinyThe ultralight sleeping bag only weighs 0.8kg(1.8lbs). The packed size of the sleeping bag is 35 17cm/(13.8 6.7in). A Mesh storage bag is matched with this sleeping bag to avoid moisture.Game Changer-Convenience ZipperBy the body anti-snag zipper design at the foot box, it relieves your feet to breathe in warm weather, but still having them on the soft bag. This sleeping bag is great for regulating heat. The zipper is doubled tabbed so you can zip up from the inside as well as outside or inside. You could actually even walk while still in the sleeping bag if you wanted!User-Friendly DesignThis cotton sleeping bag is made of a soft 15D ripstop shell to prevent down loss and protects against wet weather. Keeping your head and feet warm is key to remaining warm, so we add more feathers to this part of the sleeping bag. The inverted trapezoidal design provides more space and comfort for your feet. Inside pocket established in this sleeping bag can safely store your flashlight, wallet, keys, watch and other things. A draft collar, snag-free velcro, horizontal baffles in the sleeping bag will work together to minimize heat loss. Temperature ScalesMost standard sleeping bags have TWO temperature scales: Low temperature: Refers to the lowest and highest temperature the sleeping pad can hold. This only indicates that you can survive at such a temperature in the sleeping bag, but it does not mean that you can fall asleep under such circumstances, it depends on the different physiques for different people. Overall, we do not recommend using the sleeping bag below or above this temperature range.Comfortable temperature: Refers to the ideal temperature for comfortable use of the sleeping bag. At this temperature, people can fall asleep very comfortably, without being unable to sleep because of external factors.It should be noted that the comfortable temperature is only a relative concept. The temperature range listed above is only based on lab tests and field experiments by brander research institutions. You can only use this data as a reference as each person's body condition is different and the external environment in using the product is also different. Generally, everyone can withstand different temperatures. For every sleeping bag, we suggest every user use them in the suggested comfortable temperature range. FAQsWill there be terrible smells? No, By cleaning it after using it every time, there will be absolutely no smells.Is it easy to place back into the carrying bag? If you roll up the sleeping bag tightly it is easy to stuff it back into the carrying bag.