The perfect little addition to your ZUCA Sport or Pro. Stuff all of your extras into this handy little sack! It slides over the handle on your Zuca so you can tote your books, magazines, snacks, gym clothes, sports gear, etc. around town. Or even use it as an eco friendly way to grocery shop! Made of ripstop nylon, you will be amazed at how strong this bag is and you can easily carry it in a pocket when not in use