Features Ergonomically designed shoulder straps can be evenly distributed shoulder and back withstand gravity. Imports of high-quality fabrics, high water, SBS double zipper, YKK buckles, scratch, tear. High density breathable mesh, carrying more comfortable, better ventilation. Shipping time: 8-12 working days please contact us if there is any question. Description Product Description Material: Nylon carrying system: TCS carrying system structure: the outer frame package Capacity: 40L / 50L 40L Size: 52 * 30 * 20CM 50L Size: 56 * 35 * 23CM if equipped Covers: yes is there a kettle reserved warehouse: yes If you are looking for a versatile and stylish backpack, then this product is worth for your close attention. It has the following main features 1. High-quality backpack waterproof, wear-resistant. 2. light weight, suitable for vacation, travel, camping and other occasions. 3. Be easy to carry, the whole breathable mesh straps, high-quality two-way zipper. Comfortable for carrying. 4. Excellent material, resistant to high temperature and pull, no pressure to support heavy staff, difficult to damage. About Return Policy: If you are not satisfied with our product or there is any other question, let us know as soon as possible and we will reply it within 24 hours. If it is our mistake, we will fix it and give you a satisfactory solution. If you recognized our product and service, please do not forget to leave 5 stars positive feedback, we will appreciate your encouragement very much.