I made a sleeping bag cover out of DuPont Tyvek. ※ This cover has a double zipper on the side, allowing you to open it completely from the top or just open the foot area. ◑ This "Sleeping Bag Protector" is a sleeping bag cover designed for 3-season tent camping. I take a NANGA Aurora 280DX with me for summer tent camping. I want to keep my gear as light as possible, but it can get surprisingly cold in the mountains even in summer, and I often wake up in the middle of the night. So, I take the "Sleeping Bag Protector" with me as a safeguard. By using it over my sleeping bag, it not only protects the bag from condensation that builds up inside the tent but also increases its insulation. ◑ The size is approximately 225cm in length, 90cm at the entrance, 65cm at the foot, and 26cm gusset when laid flat. The weight is approximately 260g including the stuff sack (there may be slight individual differences). ◑ The design focuses on a wide entrance to reduce stress when entering and exiting, and a narrower width towards the foot to reduce unnecessary space and fabric, thereby reducing weight. Also, because I wanted it, I added a smartphone pocket on the inside (this is important). ※ Wrinkles will occur due to the nature of the material. ※ Although the material is waterproof, please note that the product is not completely waterproof due to the sewing. ※ The Tyvek logo will be printed on the inside. ※ Please understand that it will be folded up small for shipping. ※ We make each item with care, but there may be slight individual differences. If you are looking for perfection like a mass-produced product, please refrain from purchasing. ※ Items other than the sleeping bag cover are not included. ※ It is also possible to put the zipper on the left side. Please contact us in the comments if you would like this option. ※ This is only a sleeping bag cover. When using it, be sure to use it with a sleeping bag and sleeping system that are fully compatible with the environment. Ultralight Yamato Michi Tyvek Ridge Mountain Gear Locus Gear Hyperlite Mountain Gear Sleeping bag Sleeping bag cover Nemo Therm-a-Rest Big Sky Big Agnes Sea to Summit Patagonia Montbell NANGA SOL Bivy OMM The North Face Teton Bros. Tetonbros MSR Columbia