We love options, and this adidas by Stella McCartney bum bag is full of them. Because it's not just a bum bag. You can turn it into a backpack, depending on what you're up to that day. Color: Multicolour, Green, Semi Impact Orange, Black Bumbag that transforms into a backpack Bumbag: Adjustable hip belt with logo print Circular aSMC print on front of bumbag Zipped pocket inside Top flap with zip Adjustable straps to store your jacket Backpack: Drawstring closure at the top Shoulder straps with logo print Color: Green, Semi Impact Orange, Black