The Nylon Ball Cap in blue. Made of a PFC free, water repellant fabric from the Italian mill Olmetex - well known producers of some of the world's highest quality technical cloth. Knickerbocker embroidery on front with N.Y. embroidery on back.Adjustable back strap with Knickerbocker branded tin slider. Un-structured and low profile silhouette. Features our custom brim insert, which provides structure and greater flexibility to better fit the contour of the wearer.