This mens formal blue twill shirt is made from the finest 2 ply 100s cotton which has been perfected with a unique silk touch finish it is designed with double cuffs and a full cutaway collar also known as the windsor collar the windsor collar was specifically designed by hawes curtis to accommodate the duke of windsors desire for a thicker knot also known as the windsor knot in his tiesr r 2 ply 100s cottonr classic fitr double cuffr cutaway collar