Ergo Pouch Cocoon Swaddle Bag Size 0000 for up to 11lbs and up to 21.7” in length. 1.0 TOG (thermal overall grade) rating, ideal for room temps of 70-75° Two way zipper for easy diaper changes. Snaps at shoulders to allow for arms out. Used once, washed in newborn safe detergent. No flaws.