Come and see our amazing products. The 40L hiking backpack is sturdy and durable. The fabric is made of polyamide fiber and high-quality tear-resistant polyester fiber. It is waterproof and tear-resistant. An extra rain bag is placed at the bottom of the backpack to prevent water and dust from entering the backpack to protect valuables from heavy rain. And keep the backpack dry. Ultra-light backpack, ultra-light backpack, high capacity 40l, lighten the burden of the backpack, allowing you to carry more items. Pls confirm with us about the packing info, stock color and exact production time before placing your order.