Fuzzy zzZipMe Sack is a 100% polyester, cozy wearable blanket for babies ready to transition from swaddling * Designed by Lynette Damir, who selects quality, durable, ultra soft fabrics that look great after many years * TOG rating of 2.2 which is appropriate for situations when baby"s nursery or sleep environment is 65 -70 degrees Fahrenheit (the temperature range medical experts recommend for sleep) * Sizes: 3-6 months, up to 28" and 6-12 months, up to 32" * Machine wash warm, tumble dry low; Proudly made in USA using USA cotton