JJ Cole's reversible body support has soft velour on one side and a breathable embroidered knit on the other providing comfort to baby in any season. The head support is adjustable and detachable which accommodates baby's growth.Fits snugly around infants. Gently supports baby's delicate head neck and back. Open back panel allows for proper lightening of harness. Machine washable. Reversible from soft plush to breathable knit. Fits most harness systems. No threading necessary.when tranfering between seats. for use in car seats joggers strollers and more .