Men's sizing, intended to fit true to size. RIB POLO COLLAR RIB CUFF AND HEM TRIM THREE-BUTTON HALF PLACKET CLOSURE Signature GIR branding at center back 100% Cashmere Medium-weight Keny is 5' 10."5 / 179 cm and is wearing a Medium. Cosme is 6'2" / 188 cm and is wearing a Medium. Premium cashmere sourced from inner Mongolia, manufactured in China