The Jackman JM8670 Nylon Ballboy Shirt in olive is built from a 100% nylon oxford weave that has been unevenly dyed and heavily wrinkle-processed to evoke the specific texture and character of 1960s nylon workwear, complete with the crisp, rustling hand that defines that era of fabric. The coach shirt silhouette carries a vintage-like finish with practical details that go well beyond the aesthetic reference. The jumbo chest pocket is the standout, combining a large ball pocket with an easy-access hand-warmer pocket below it, giving you genuinely useful hands-free carry in a single chest configuration. Elastic shirring at the cuffs with small slits allows for easy on and off and quick sleeve rolling when you need it. 100% nylon oxford weave Unevenly dyed, heavily wrinkle-processed for 1960s nylon character Coach shirt silhouette Jumbo chest pocket with ball pocket and hand-warmer pocket Elastic shirred cuffs with slits Made in Japan Size Chest Shoulder Length Sleeve S 24.41" 22.05 27.95 21.65 M 25.20 22.83 28.74 22.24 L 25.98 23.62 29.53 22.83 XL 26.77 24.41 30.31 23.43 A variance of .5" is within tolerance.  Fit Notes: Shop owner Tommy is wearing a large in this piece. It's quite roomy, but we would still recommend sticking with whatever you normally wear from Jackman on this one. If you don't know your size, the safe bet is to size up once from what you might imagine is your true size. Tommy is 5'9," 165lbs with a 41" chest.     table { width: 100%; border-collapse: collapse; } th, td { border: 1px solid black; padding: 8px; text-align: center; } th { background-color: #f2f2f2; }