The Mini Guardian Anti-theft Backpack is great for traveling and theme parks and a perfect size for everyday use. It opens in the back which when wearing is against your back so no one can get into your goodies. The lining is a waterproof canvas that has a zippered pocket, a slip pocket, and a built in credit card slot. The exterior has 2 side pockets to accommodate a cell, water bottle or sunglasses. Three strap options to use with a grab handle, shoulder strap and backpack straps.