So, you don't need worry about splashing water droplets or coffe and don't need rain cover in light rain. Every details including the material, the length of the elastic strip were tested and upgraded for years.
| School Type | High School |
| Compatible Device Size Maximum | 22.0 |
| Age Range Description | Adult |
| Backpack Design | Laptop Backpack |
| Brand | Besnfoto |
| Import Designation | Imported |
| Outer Material | Tpu Nylon |
| Recommended Uses For Product | Travel |
| Size | Medium |
| Part Number | Bx-D2001Ptn |
| Target Gender | Unisex |
| Pattern | Solid |
| Pocket Description | Utility Pocket |
| Theme | Photography |
| Sport Type | Hiking, Cycling |
| Lining Description | Polyester |
| Storage Volume | 22.0 |
| Shell Type | Waterproof |
| Subject Character | Sports |
| Closure Type | Zipper |
| Color | Black |
| Customer Package Type | Standard Packaging |
| Item Shape | Rectangular |
| Department | Unisex-Adult |
| Strap Type | Adjustable |
| Material | Tarpaulin |
| Care Instructions | Wipe With Damp Cloth |
| EAN | 0756557823141 |
| ISBN | 0756557823141 |
| Package Dimensions LxWxH | 18.4x13.0x7.5 Inches |
| Weight | 4.35 Pounds |
| UPC | 756557823141 |
I appreciate the medium size because it fits a book and a water bottle while staying comfortable on the shoulder.