60’s 70’s Check Blazer Black Gingham Menswear by The KnackBlazer. The Knack Sports Coat, Size 40S See measurements Black and white small check Gingham Golden buttons with engraving 2 button closure Patch pockets with flaps 2 internal pockets Measurements flat (All measurements in inches) Shoulder, seam to seam 17 Underarm to underarm 20 Waist, at the top button 18. 5 Length, from center of back (below collar if present) 29 MBDCL