The multiple strengthened points to avoid seam broken, sliding or bursting, etc. The compression bag is made of , this sleeping bag is durable for use and also good-looking. This product is specially designed to ensure that after a tiring day of trekking, hiking, travel or any other exploration you can get a good and relaxing sleep. Feature - Color: Black. - Material: Fabric. - Size: Approx. 43x23x23cm. - Weight: 125g. - Great for survival, backpacking, hiking, camping, trekking and any other exploration. - Comfortable, waterproof, durable and lightweight to use. - The four compression straps allows sack to be used to maximum capacity or compressed to minimum size. - The compression bag is well made and the straps are secure you will end it up with a ball. - Warm Tip: Dear buyer, Due to lighting effect,monitor's brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand! Thank you! Package list: 2 x compression bags