SIZE: 38CM*26CM*12CMMATERIAL: Waterproof polyester fiberINCOMPARABLE QUALITYUltra-durable and Light with weight only 0.85 pounds.This backpack is made of high quality tear and water resistant polyester fabricCollapsible & ComfortableIt can easily fold into its own pocket for storage,and unfold it when you need it. A must have for every trip.Breathable mesh shoulder straps with plentiful sponge padding help relieve the stress from your shoulder. A must have for sports , hiking, camping and traveling.Large Capacity & Multi Compartment One main pocket two side pockets ,the main pocket Can put 15.6-inch computer, the side pockets are good for holding water bottles and umbrellas to help you further organize things.Large capacity helps you easily organize all your essential items.MULTIPURPOSEThe backpack is perfect for day-to-day use or day trips, vacation,fishing,cycling,hiking,travel, day hikes, school, camping or shopping etc. A great gift for every travel enthusiast .