This is the discontinued Simms G4 Pro Shift Backpack. It has been stored unused since purchase, so the tags are still attached. Capacity: 31L An innovative pack that integrates a backpack with a waist and hip pack. The full-size 11x9x7in waist pack has two Velcro panels for flexible internal layout. A large pocket is located inside the lid, allowing ample storage for multiple fly boxes and various tools. When facing fish or moving, the waist pack can be rotated 180 degrees and stored at the bottom of the backpack. This streamlines the abdomen, making casting and line management easier, and improving visibility of your feet when moving. The large main compartment of the backpack easily stores spare layers, lunch, and other essential gear for the day. A large net can be securely stored in the drop-down wrap on the back.