USAAF Type A1 Vneck Sweater by Bronson MFG Co. The design of this sweater is based on the uniform provided for mechanics, pilots, and army soldiers during World War II. This is a quality heavy knit and dry clean only. Size 40. More measurements are below. 80% Wool 20% Polyester. Shoulder to Shoulder- 17in. Pit to Pit- 19in. Sleeve Length- 22in. Overall Length- 23in