4.5 oz./yd/155 gsm (US), 7.5 oz./L yd (CA), 55% cotton, 45% polyester twill. Wrinkle-resistant and stain release fabric. Button-down collar. Left chest pocket. Hemmed sleeves. Extra stitching at seams and buttons. Flat-felled seam finishing. Full back yoke and back pleat. Signature horn-style buttons with Harriton logo.