Armpit to armpit - 20.5 inches across. Neck to bottom - 28.5 inches. Smoke free home. “Men’s short-sleeve polo shirt by Upper Limit, featuring the embroidered iconic square logo for Haas Automation. This gray textured shirt has black accent tipping along the collar and unique wood-toned buttons. It is perfect for machinist professionals, CNC operators, or fans of the Haas F1 Racing Team.”