Features Imports of high-quality fabrics, efficient waterproof, YKK double open zipper, YKK buckles, scratch, tear. Ergonomically designed shoulder straps can be evenly distributed shoulder and back withstand gravity. Using memory metal stent, can enhance the carrying force, protection shell spine, breathable and more comfortable. Shipping time: 8-12 working days please contact us if there is any question. Description Product Description Material: Nylon carrying system: TCS Applicable Gender: Unisex carrying system structure: within the frame package Capacity: 40 liters / 50 liters / 60 liters 40L Size: 55 * 31 * 16CM 50L size: 60 * 32 * 17CM 60L size: 65 * 33 * 18CM 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.