Features: ▶100% brand new, made of high quality materials, durable, when added cotton, keep warm▶Durability and water resistance: This sleeping bag made of 190T tear-resistant polyester and waterproof coating, filling with a cotton hollow can always keep the heat inside the sleeping bag. Inner fabric made of 190T polyester pongee soft and skin-friendly polyester, suitable and breathable. ▶Various specifications available fit almost all seasons. You can use the adjustable elastic strap design when cold, the bottom design can help your feet free, when you are hot it can improve the air permeability, adapt to what you like. Summer comfort temperature above 25 °C, spring and autumn comfort temperature about 10 °C 20 °C, winter comfort temperature about 0 5 °C 10 °C.Specification:Item: envelope sleeping bagType: 4 season sleeping bagProduct size: (180+30)* 75cmNet weight: about 0.95kgColor: red, blue, army green, navy blueFabric: 190T polyester fabricFilling: with hollow cottonComfort temperature:Summer type: over 25°CWoy and autumn type: about 10 °C 20 °C Winter type: about 0 5 °C 10 °COpacking includes:1 * sleeping bag1 * carrying bag