Specification: Product: Climbing Bag;  Material: 99% Polyester Fiber;  Capacity: 20L;  Zipper: Anti-corrosion Zipper;  Size: 40 x 30 x 25cm / 15.75 x 11.81 x 9.84inch;  Color: Green, Dark Green, Red, Black;     Features: - Suitable for hiking, climbing. camping, mountaineering and other outdoor activities.  - 20L lightweight storage bag. All seasons suitable. Anti-wrinkle. Waterproof. Metal anti-wear zipper.  Ergonomic design strap.  - Air flow carrying design. Under the premise of ensuring comfort, the sweat is ventilated and the back is not stuffy.  - Breathable mesh fabric. Reduce shock. Reduce the pressure to body. Further enhance the comfort of the shoulders.  - Anti-wrinkle fabric. The backpack is made of rhombus fabric. Water repellent. Not afraid of rainy days.  - Wide range of practicality. Corrosion-resistant zipper with simplicity.  - Elastic side pockets. Anti-pilling fabric. Double side design.  - The adjustment buckle is made of nylon material and has excellent resistance from fracture.  - Equipped with storage hooks. Convenient to hang on belts, backpacks, etc.     Package Included:  1 x Pioneer Climbing Bag