This is a multi-functional 2-way backpack made of high-density nylon with a large 42L capacity. - Type: 2-way - Weight: 2.3kg - Capacity: 42L - Material: High-density nylon - Features: Multi-functional pockets, tire cover, silent design Thank you for viewing. I used this once for a family trip, but it wasn't convenient for my family, so I am selling it. It is in very clean condition. An unused lock is also included (placed in the front pocket). I will pack it in plastic for shipping. Thank you for your understanding.