This might be the coolest backpack on earth. The Oveja Negra Portero is a roll-top backpack, variable between 16 and 22 liters of storage. It makes the ultimate commuter bag, or pack some clothes for an overnighter if you want to keep your bike light and shreddy. This bag is featured in Oveja Negra’s unique Wack Pack colorway, which combines all of the coolest patterns in their stock in a patchwork product that is truly one of a kind.