If you're into fanny packs these are a stellar new design. The roll top features offers nearly unlimited use of the entire pack capacity....and more. You can overstuff this if you need to strip that down jacket and tuck it into an already filled pack. The capacity is seemingly bottomless, but at the same time the pack is sleek and not too bulky when only carrying the essentials. We've also found it to be a great option for stowing your favorite picture taker.