Makino Ultralight Foldable Travel Backpack Outdoor Shoulders Bag 22L 5504 Material: 100% Nylon Super lightweight and large capacity backpack can be compressed into a wallet size, easily foldable and portable, convenient to carry. Waterproof and breathable, water repellent and winkle free Capacity: 20L 100% polyamide hi-tech fabric provides optimum breathable performance Water temperature no more than 40C when washed Perfect for outdoor activities like hiking, climbing, camping, running, jogging, walking, cycling, fishing, travel, vacation, beach wear, can be also used as a student bag