Size 6-18 months. Good lightweight sleep sack! Like new. Made of 100% GOTS certified organic cotton, it is free of pesticides, insecticides, and other chemicals normally found in conventional cotton. OEKO-TEX® STANDARD 100 label (23.HUS.59156, Hohenstein HTTI) this product has passed safety tests for the presence of harmful substances The incredibly fine fabric is ideal for baby’s sensitive skin.