Joi Stash Co Joi Stash JOI Dance Bag Brooklyn's Review YouTube JOI How To Use Air Joi Bags at Karen Saunders blog. Designed to keep you organized and stylish in the studio and backstage, the Joi Prima Duffel Bag features six different pockets to stash everything you need for class, rehearsals, and performances. The spacious main compartment is perfect for storing all of your larger gear, and a front zippered pocket for easy access to your phone or wallet. A convenient side pocket will keep your water bottle handy, and a separate pocket for shoes helps contain any unpleasant post class smells. On the back of the bag is a trolley pocket to slide over your suitcase handle for easy traveling, while the adjustable shoulder strap offers a comfortable way to carry the bag for everyday use.