A backpack and a rolling cart - two of the hottest products on the market today. Who said you couldn't have it all? The over sized, adjustable shoulder straps on the back allow for a comfortable fit when used as a backpack. Then, when it gets too heavy, simply unzip the top and pull out the telescoping handle. There is a flap that can cover the wheels when it's not use as a rolling cart. There are pockets for phones, sunglasses, binoculars, papers, keys, wallets. There are 2 side zippered saddlebags, and three pouches for tons of storage space. Backpack measures 19" x 13" x 6 1/2".