Polo Ralph Lauren check pattern button down shirt - made in Canada vintage

made in Canada vintage good condition all-over check pattern in nzvy blue & green, simialr to Black Watch Tartan tagged XL, but fits large for its size (please see measurements) flat lay measurements: ~29" pit to pit ~25" sleeve length - from shoulder seam ~22" shoulder to shoulder- measured across back ~33" length - from bottom of collar band, along back