The ALPS Mountaineering Tour boasts a roll top design which allows the pack volume to easily expand from 35L to 45L. Its lightweight 200D nylon double ripstop fabrics with 3D mesh suspension and aluminum stay provide a comfortable fit and carry. If you prefer no waist belt on a particular outing, the waist belt can quickly and easily be removed. The large main compartment, hip belt pockets and zippered lid pocket give the Peak 45 a total of 2,135 – 2,746 cubic inches of storage. With the Tour there is no need to dig out all the contents of your pack to get to the bottom; two strategically placed side zippers provide additional access to the main compartment. A front zipper pocket, stretch side pockets, side and bottom compression straps, and trekking pole loops provide additional gear storage and lashing points. A hydration port with pocket and built-in rain cover are both included making the Tour a truly versatile pack.