Product size: Before storage: 41*24*16cm After storage: 12*7cm Color: green, black, sky blue Material: water-repellent polyester fabric Package content: 1pc foldable backpack 1. Lightweight and compact Easy to carry, can be folded to wallet size and fits in a pocket. 2. Water-resistant material This lightweight hiking backpack is made of water-resistant material and zipper. Effectively prevents rainwater from wetting the phone or cash and other items in the backpack. 3. Durable Tear-resistant 30D nylon effectively prevents branches and stones from scratching the backpack, keys and other products can also be stored safely inside. All seams are reinforced to suit long-term use. 4. Multifunctional This foldable backpack provides enough space for outdoor travel, camping, hiking, day trips and shopping. It has a main zippered pocket, a front zippered pocket and two mesh pockets on the sides. The main compartment provides enough storage space for day trips, hiking and shopping. It is also an ideal choice for international travel at the airport.