The Ergococoon is the new generation zip Up swaddle by ErgoPouch. Makes swaddling safe and easy. Your baby will feel secure and snug with stretch organic cotton. It allows your baby to move their hands into a comfortable position that suits them without waking up. Now with poppers in the arms for an easy transition to convert to a sleeping bag when your baby is ready. The ergococoon also gives your baby the option of sleeping arms free or tucked in. 3-12 monhts fits up to 26 lbs. cocoon length from shoulder to feet 30.7 in. 100% Organic Stretch Cotton.