Big Agnes Duster 15 Kids Expanding Sleeping BagA SLEEPING BAG THAT GROWS WITH YOUR CHILD! Synthetic fill Big Agnes Duster Sleeping bags are built for juniors and kids, incorporating the technical features of our adult bags. Finally, a piece of gear you don't have to replace every year as your child grows! The Duster is a warm, cozy Big Agnes System bag that will grow with your Lil camper from tot to teen. Offering a customizable fit system, the Duster can be sized down to keep your littlest snug