Bold and visible Referee lettering made with durable high quality pvc Premium 100 percent high quality cotton Low profile classic baseball unstructured hat with curved visor nill Adjustable copper buckle strap back fits most adults great fit for men and women Perfect outdoor event hat Classic referee sports hat. I&W Headgear Dad Baseball Hats are made with soft 100% Washed Cotton Polo Style with six panels and eyelets, 6 rows of stitching on pre-curved bill soft hand feel, adjustable starp back clip, fits most adults. Block and Script Font Letters. Easy to carry in your pocket and quickly recovers in original shape and size. A baseball cap is a type of soft cap with a rounded crown and a stiff peak projecting in front. The cap is often seen in everyday casual wear.