Finish a peaceful bedtime routine by wrapping them in this ultra-soft sleep sack made from organic interlock cotton. The sleeveless sleeping bag keeps them warm all night and allows them to wriggle without removing their blanket. Product details -Composition: Interlock, 100% organic cotton -Sleeveless sleeping bag with zipper -Zipper protection to protect baby's chin -Available in two sizes: Birth-6 months and 6 months-18 months