SweatshirtsUSA sells better quality 100 % cotton and heavyweight sweatshirts to small and medium sized businesses, as well as individuals. Kellsport has been proudly manufacturing high quality heavyweight sweatshirts in the U.S.A. for almost 42 years. All of the material that goes into the construction of a sweatshirt is Made in U.S.A. The yarns we use are blended to our specs by yarn spinners that we have had long standing partnerships. Each sweatshirt is cut by hand, and sewn by experienced craftsman.