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 you lil camper from tot to teen. Offering a customizable fit system the Duster can be sized down to keep your littlest snug as a bug and then simply un-clip the loop and closure for more room and space as needed for size and comfort. Start 'em young!