The SJST-TW01 is Samurai's heaviest tee to date at 15.7oz, and the construction behind it is worth understanding. They start with #10 air-spun yarn, an open-ended spinning technique that uses only air to twist thick, short-staple cotton fibers together. The process produces a naturally slubby, irregular yarn that carries real texture before it's even knitted. From there, the yarns are doubled to create an effective #5 weight, giving the fabric a heft and density closer to heavy denim than conventional jersey. The layered dyeing adds another dimension, a tone that shifts slightly depending on the light and continues to develop with wear. The fit is boxy and balanced, finished with a reinforced two-needle binder neck built to hold its shape. This is a tee that takes a few washes to fully come alive, and then it's yours for a long time. 15.7oz extra heavyweight jersey, 100% cotton #10 open-ended air-spun yarn, doubled Slubby, dry handfeel Layered dyeing technique Reinforced two-needle binder neck Pre-washed to minimize shrinkage Made in Japan table { width: 100%; border-collapse: collapse; } th, td { border: 1px solid black; padding: 8px; text-align: center; } th { background-color: #f2f2f2; } Size Chest Shoulder Back Length Sleeve Length M 21.45 18.9 26.2 8.7 L 22.45 19.5 27.0 8.9 XL 23.05 20.1 28.1 9.3 XXL 23.80 20.9 28.7 9.4 A variance of +/-.5" is within tolerance.  Fit Notes: Normally, t-shirts run pretty small from Samurai. This one was more on the roomy side. Tommy easily wore a large for the photoshot and liked the fit a lot. We do not expect these to shrink up much because of the heavy wash process. We recommend you stick with your true size. Tommy is 5'9," 165lbs with a 40" chest.