A New Kind of Fanny Pack Party Returns to LA. After packed editions across LA, Long Beach, and San Diego, UNZIP returns to Los Angeles on Saturday, July 11, taking over Jewels Apartment at Catch One LA for another night of zippers, sweat, and low-light chaos. This isn’t another underwear party. This isn’t another leather night. Dress code: a fanny pack. That’s it. The Holy Fanny Pack Functional. Flirty. Built for play. Bring your own unzip look or grab the official UNZIP pack at online or at the door. Limited colors. First come, first served. The rule remains the same: If it unzips, it fits.