Disney Store Mike Wazowski Onesie Costume Bodysuit Size 12-18 Months with Hat Authentic and exclusive Disney Store design with reliable quality and durability Features embroidered appliqu eye and mouth, and lapped shoulders Includes matching green hat with horns 100% organic cotton with two rows of snaps at the bottom, giving an extra inch of length to allow bodysuit to grow with your baby Size 12-18 Months for children 18-26 lb and 27-31" in height