Features: -With its unique reverse zipper construction, this sleeping bag allows for quick and discreet diaper changes without waking baby -Exceeding international safety standards, the sleeper will quickly become the most popular item of clothing more practical for baby's nights -2.0 togs: Room temperature 16-20celsius/61-68F 0-6 months: intended for babies whose weight is 4.5 to 7 kg / 10 to 16 lb and height 23" to 26" 6-18 months: intended for babies whose weight is 7 to 11.8 kg / 16 to 26 lb and size 26" to 34" 18-36 months: intended for babies whose weight is 11.8 to 18 kg / 26 to 40 lb and size 34" to 40" Composition: Exterior: 100% cotton. Lining: 65% polyester 35% cotton. Fill: 100% polyester