Personal favorite of the baby wearable blankets in hard to find toddler size. Summer weight (1.25 tog) is ideal for air conditioned homes but we layered and wore well into colder wearther. The inner lining is 100% cotton. Adjustable arm holes, generous bell shape sack allows ample room for kicking and front zipper for easy diaper changes. Bonus, it makes sneaking out of the crib a challenge. 2 included so laundry is a little easier. Large 22 mo - 3T