65% Polyester 35% Cotton Imported 2 swaddling positions: arms over chest or by their side Easy change zipper for quick, quiet diaper changes The secure design creates a cozy, womb-like feeling for baby and prevents startle reflex that can wake your infant. Extra-soft fabric is gentle on baby's skin; wings fasten and readjust securely with hook and loop attachments to create a perfect fit; color snap for a secure and close fit 0-3 months, 7-14 pounds, up to 26 inches