Large bonnet has a stiff brim surrounded by pleated ruffles with an elastic band at the back nap for proper fitting. Long ties on each side. Fabric made with 100% cotton. Bonnets are mailed flat and will have a crease. Use a mixture of white vinegar and distilled water and iron crease out. This size can run a little small.Large: Brim: 5 inch brimRuffle: 1 inch wideCircumference Outside of Covering: 27 inches (not included elastic which expands greatly. Depth of bonnet is 9 inches deep from the middle100% Cotton with Stiff Brim and Flat PleatsTies at the Sides