● Turn your garment inside out.
● Remove excess moisture by gently pressing on it with a clean towel.
● Place your garment in the dryer on low heat with a couple of dryer balls or clean tennis balls. This will get back its loft and prevent the down from clumping. To make sure it dries properly, regularly turn your garment inside out throughout the cycle.
● Make sure the down has been completely dried, not just the shell fabric, to avoid clumping or mold. This might take a couple of hours.