Buzz Rickson's basic sweatshirt is made of 13 oz. heavy cotton. The very high quality sweatshirt fabric is woven in Japan on original old 4-needle loop looms from 1920\. These looms are special machines used to produce sweatshirts without side seams, also called tubes. It hardly gets any better than this! * 100% Baumwolle * 13oz Jersey * Circular knit, no side seams * Rib cuffs: Neckline, sleeves, hem * Slim fit, take one size up * Made in Japan The sweatshirt has evolved from a wool-knit material to a cotton material with a looped backing, and has evolved as daily wear for the American public as a "sweat-absorbent shirt". The military and military academies, where hard training was a daily routine, were quick to take notice, and the sweatshirt was also sold at base shops scattered across the USA. The material has a unique flexibility because it is made using a tubular suspension knitting machine, which knits the material under uneven tension, just as it did at the time. The V-shaped