It’s a fanny pack! Humans are one of many species in the galaxy to be born without a natural ability to store things. This is through no fault of their own; natural selection’s greatest gift to Earth’s lone intelligent species was the opposable thumb. The fanny pack is not a suitable alternative to natural evolution, though.
Once a huge fad during the pre-contact Earth calendar, the fanny pack was worn by men, women, and children nearly everywhere from the shopping mall to the local amusement park. As the fad died out, the clan known as the “soccer moms” tried to keep it alive because of the easy access to medical supplies and change it allowed (strangely, the “white trash” clan seemed to keep the faux pouch for similar reasons.) These nations soon realized there were more fashionable ways to carry their items. Purses and book bags took their rightful place at the top of the fake human pouch industry, and both the economic and fashion aspects of human civilization regained balance within the Force.
If in your travels you see someone wearing a strange storage device on their waist region held on by a plastic snap-release system, avoid them at most costs. They are either one of those “vintage hipsters” that find old pod racer T-Shirts to be “hip” nowadays, or they’re one of the last people you’ll want to be seen in the cantina with. The number of top-open zipper compartments matters not; the fanny pack will forever be a trap!
(Note: You may have noticed a strange symbol on the device that reads “NASCAR.” This seems to have been an ancient racing association that drew in huge crowds of fanny pack savvy humans. Human leaders have covered much of the information about this group up, but the Rebel Alliance has sent a team of researchers to investigate the strange symbol and the league it represents. If we hear anything, we’ll be sure to inform the rest of the galaxy.)