New! Quick Change Fanny Pack. Need to change a diaper? Buy a coffee? Feed a baby? Cuddle-hug a rowdy toddler with both hands? This is a bag for people who may need to do all of those things, but definitely do not want to haul around a gigantic diaper bag. Light weight, with one-handed access, and most-importantly, it's designed to make life simpler and easier for people who have kids.