Half Pint Mini Backpack - 12.3 Bleached Denim. If you are looking to make a fashion statement, the JanSport Half Pint backpack is a great pick. Colorful and funky, it features a main compartment to stow away small books, pens, and more. This JanSport mini backpack also comes with a utility pocket in front to stash your keys, ID, and other small accessories. Small in size, this travel daypack is perfect for kids and teens. It has a polyester construction to ensure durability. With a key clip and web haul loop in place, this mini JanSport backpack is perfect for picnics and day trips.