DaKine Cyclone Roll Top Backpack: For the minimalist who isn’t big on showing off crazy patterns, but rather innovative style and reliability, we present the DaKine Cyclone Roll Top Backpack. Leave all the frill at home and get down to some serious business with this bag. The roll top closure provides a waterproof seal and the welded construction makes sure that nothing, I mean nothing, is getting past this bad boy.