Product Description: The Jasper Baby Cotton Muslin Wearable Blanket is made from two layers super soft 100% cotton Muslin. It replaces blankets and cannot be kicked off. This ensures your baby is warm all night. The high quality reverse zipper allows for easy night diaper changes and feet ventilation as needed. Additionally, there is a zipper guard at the top and along the zipper ensure extra comfort for your little one. TOG: 0.5 Sizes: MEDIUM - Age: 6-12 months / Height 24-32in / Weight 16-24lbs. LARGE - Age 12-18 months / Height 30-34 in / Weight 22-28lbs. XLARGE - Age: 18-24 months / Height 32-28in / Weight 26-36 lbs.