Outdoor folding backpack $ 4.89 Outdoor folding shoulder: waterproof and super light carrying bag Outdoor: folding bag Bag size: medium Capacity: 20-35l Cover opening method: zipper Applicable gender: Male / female Material: Polyester Lock: no With or without rain cover: no Function: breathable and waterproof Processing method: soft surface Hardness: soft Pattern: solid color Lining texture: Polyester Number of shoulder belts: Double Fashion element: sewing Lifting parts: soft handle Type of outer bag: stereo bag Bag shape: vertical square With or without pull rod: no Scene: Travel Color: red, green, blue, black, lake blue, navy blue, rose red, gray, sky blue