420D lattice nylon +420D plain nylon [Be a Ultralight Backpacker Now] - The HOMIEE 50L hiking backpack weighs only 2 pounds (940 grams) and it s designed for minimalist hikers with first-class durability and comfort. This travel backpack is made of durable 420D waterproof nylon fabric to prevent tearing and abrasion caused by prolonged use. An ideal expedition backpack for anyone on a 3-5 days adventure from beginners to group leader through to veteran thru-hikers! The size of this backpack is also perfect to take on a plane.