Machine wash cold water (30'C) Tumble dry delicate cycle 100% organic cotton Tested by independent laboratories and testing facilities to ensure quality and safety standards Safe and exclusive Canadian design without snaps Our waffle muslin made of 100% organic cotton is the absolute perfection for all year round. Light and breathable, this 1.0 TOG sleep sack is soft on baby's skin. The Perlimpinpin wearable blanket will keep baby comfortable for a nap or through the night. This fabric allows airflow, helping reduce the risk of overheating. It is suitable for warmer temperatures or for colder ones with proper sleepwear. 1.0 TOG Perlimpinpin best sleep sack features: perfect for all year round with proper sleepwear made of 100% ORGANIC cotton beautiful new waffle texture safe and exclusive design without snaps ideal for an undisrupted sleep keeps little baby warm all night opens fully from bottom for easy diaper change well adjusted neck hole ensuring the bag is never over the head protected chin lots of room for feet designed and tested in labs by a third party to make sure that no detail is left out for your baby's safety