It is just simply amazing that you never see a lounger can be put into your backpack that easily. Made of waterproof nylon, this inflatable sofa weighs only around 1.9lb and comes with a handy storage bag. It can be inflated in the 30s by just whipping it till the air is trapped into its air chambers, then roll up the opening tight, buckle up to close it and there you go!! Its anti-deflation and wearproof design ensure it stay inflated for up to 7 hours. Durable, lightweight, friendly to skin, and comfortable. Great for camping, picnic or hiking with the family, summer beach days with the kids, any outdoor activities you name it, and even for indoors like to use it as a blow-up couch or chair at home or in your garden/yard.