The HALO SleepSack Early Walker replaces loose blankets in the crib. With its unique foot openings, the SleepSack Early Walker wearable blanket allows for greater mobility while babies are awake, but also keeps little feet covered and warm while sleeping. In addition to helping your baby sleep safer, the HALO SleepSack wearable blanket helps your little one sleep better, too. It is a warm cuddly blanket they cannot kick off, ensuring little ones sleep soundly throughout the night. Foot openings for easier mobility when your child is awake and room to tuck in feet at night for warmth. Unzips from the bottom for easy diaper changes. Generous sack design allows room for kicking, but cannot be kicked off, so baby stays warm all night. Our founder Bill Schmid and his wife Cathy lost their firstborn to SIDS. From this tragedy, HALO and its mission were born. For nearly 20 years we’ve been dedicated to putting the health, safety and well-being of babies first. From our best-selling SleepSack wearable blankets that help babies sleep safely, to our award-winning Bassinest Swivel Sleeper that lets you sleep safely next to your baby, all we do comes from one core idea – putting babies first. The Halo SleepSack Early Walkerwearable blanket is designed and sized with a LOOSE, GENEROUS FIT to give ample leg room if you choose to tuck your little one's feet in for sleeping. If you plan on your child using it primarily with feet out, making it easier to stand up in the crib, consider a smaller size for its lesser length to reduce the amount of extra fabric that can get in the way of your child moving around. Please note that this is designed as a wearable blanket that your child will not kick off, with the amount of fabric that one would expect for a blanket - not the lesser amount of fabric that one would normally associate with a properly sized garment.Made from a lightweight 100% polyester knit fabric with a TOG rating of 0.5, for warmer climates and seasons; layer with warmer sleepwear for cooler temperatures. Available here in Large Size, recommended for 12-18 month babies, generally from 22-28 pounds and 30-35 inches long. Please note that at this Large size, the Early Walker SleepSack wearable blanket measures approximately 28 inches from the shoulder line to the bottom of the "sack", with an additional 6 inches for the "legs" - it will appear very large as compared to a garment, but is designed this way for use as a BLANKET.