This backpack from Crane Sports is perfect for hiking or cycling with its hydration compatibility and lightweight design. The blue nylon material is water-resistant and features reflective bands for added safety. It has two pockets, an elastic pocket, and a carry handle. The backpack also has a shoulder strap and can fold flat for easy storage. The backpack is compatible with all mountain bikes and has a capacity of 1.76 liters. It measures 12 inches in length, 17.7 inches in height, and 4.33 inches in width. The closure is a zip and there are no dividers. The backpack is perfect for those who enjoy the outdoors and need a reliable and durable backpack.