Fabric: Waterproof polyester fiber. Features: Waterproof, breathable, wear-resistant, explosion-proof, and vibration resistant. Convenient 360 hem design with multiple protections.Double layer thick plush inner bag, briefcase, portable laptop bag, waterproof computer bagColor: gray, Rose Red (optional)Package includes: 1 * backpackAttention:1. Due to manual measurement, please allow for minor errors. Please ensure that you do not mind before bidding.2. Colors may vary depending on the monitor, please understand.Hello, please pay attention to your shipping address when purchasing products.If your delivery information (such as name, street, house number, doorbell/email without a name, etc.) is incorrect, the order will not be delivered correctly