The SL58 has a capacity of 46 to 58 liters. The bag can be placed using the Velcro fastening on the bag, or with a specific optional mounting bracket.
Compression straps in combination with zip-out part to adjust the volume of the bag. Molded plastic to give the bag a fixed shape. Comes with rain cover, velcro fastening straps, universal fastening straps and carrying strap.