The exclusive 2 way zipper opens from the top and the bottom (patent pending) is made up of plush fuzzy fabric with soft satin trim. The zipper has a two way open machanism. Opens from top making baby easy to access and opens from bottom keeping baby snugly during diaper changes. It is 100% Polyester and machine washable. This wearable blanket can be used when baby is ready to transition from swaddling. This blanket For babies up to 32 inches long. Most medical experts recommend a sleep environment of 65-70 degrees F. Wearable blanket can be used when baby is ready to transition from swaddling. Machine washable, Proudly made in USA.