HALO SleepSack 100% cotton wearable blanket/sleep sack with an inverted zipper, new in packaging. According to HALO, size Large fits 12-18 month olds, 30-35 in. and 22-28 lbs. From HALO: Wearable blanket for safe sleep #1 choice of hospitals nationwide Sleeveless design to prevent overheating Allows for easy diaper changes Scratch-free zipper covers Premium fabric; no added chemicals Soft 100% Cotton Fabrication