The Carter's Baby Sleep Sack in size 6-9 months is a cozy and comfortable one-piece garment designed for baby girls. Made of 100% polyester fleece, this sleep sack features long sleeves and a zip closure for easy dressing. The cute heart pattern in gray color makes it a charming choice for the winter and fall seasons. Machine washable for convenient care, this Carter's sleep sack is a reliable choice for keeping your little one warm and snug during naptime or bedtime.