The Kolpin Matrix Bag offers maximum storage in a compact design with integrated padded, back rest style seat for added comfort. Unique design features multi-piece, detachable gear bags with center Matrix bag cooler to accommodate anything you need while on the trail. The center Matrix cooler section keeps up to a 12-pack of beverages cold with room for additional goodies. Patented water bottle holder zips out only when you need it. Exterior shock-cord provides even more storage for your items such as gloves and jackets.