Size before folding: 46 * 30 * 17cm; Folded size: 19 * 17 * 3cm Material: Nylon INCOMPARABLE QUALITYUltra-durable and Light with weight only 0.3 kg.This backpack is made of high quality tear and water resistant nylon fabric, Heavy duty two-way SBS metal zippers and enhanced by bar-tacks at major stress points provide long-lasting durability against daily activities.The extra strength provided by the double-layer bottom piece makes it possible to carry more stuff. Collapsible & 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. 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