Our 7.5oz loopwheel cotton t-shirt, finished with an Iron Heart chest and back print. Made from 100% cotton, the loopwheeled fabric is knitted on vintage "tsuriam-ki" machines in Wakayama, Japan - one of only two factories in the world still manufacturing authentic loopwheel cloth. This low-tension, circular knitting technique produces very soft, tubular pieces of fabric, allowing for a garment to be constructed without any side seams. Each T-shirt is then cut, sewn and printed in the historic Shitamachi (“Old Town”) district of Tokyo. [SIZE-GUIDE-INCH] XS S M L XL Shoulders 16.0 16.9 18.0 18.8 19.8 Length 23.8 25.3 26.5 27.4 28.4 Chest (P2P) 18.0 18.8 19.5 21.5 22.4 Opening 18.3 19.0 19.8 21.8 22.5 Sleeve 7.3 7.7 8.3 8.4 8.8 Sleeve Opening 7.4 7.5 7.5 8.4 8.5 [SIZE-GUIDE-CM] XS S M L XL Shoulders 40.6 42.9 45.7 47.8 50.3 Length 60.5 64.3 67.3 69.6 72.1 Chest (P2P) 45.7 47.8 49.5 54.6 56.9 Opening 46.5 48.3 50.3 55.4 57.1 Sleeve 18.5 19.6 21.1 21.3 22.4 Sleeve Opening 18.8 19.1 19.1 21.3 21.6