Customize your Zuca Sport Frame with one of our many replacement inserts. Show your true colors! * The Anaconda Sport Insert Bag: Put some skin in the game with this intricate snake pattern that"s larger than life (and friendler, too). * This Zuca insert bag is removable, hand-washable, and is made from premium water-resistant 600D polyester. * The patented design of the Zuca Sport Frames is agile, graceful, and versatile.