Jordan 23 Gymsack in Black and Red. Perfect for carrying your belongings to the gym or on the go this simple polyester pack features a large main compartment with plenty of space for your clothes, shoes, and other belongings. Featuring an interior zip stash pocket for storing small items, phones, Signature Jumpman print branding keeps that Jordan DNA we all know and love. Fabric: Exterior: 100% Polyester. Product Care: Do not machine wash, Do not tumble dry. Do not dry clean.