The combo pack can be used as a purse, a should bag or a backpack. It has adjustable straps so it can be worn as a backpack with a heavy coat. It has outside and inside pockets, a pen holder and key clip. The key clip is designed to hide away in the outside pocket. Velcro like closures keep close up the top and outside pockets. The interior is fully lined. The pack is available in various inside and outside fabrics. Check out the selection in the Combo Pack shopping cart.