The company which is  a subsidary of the American footwear company founded by Charles Beckman is a principal supplier of what.
Red Wing Shoes Red Wing Shoes (Red Wing Shoe Company, LLC) is an American footwear company based in Red Wing, Minnesota that was founded by Charles H. Beckman in 1905.
Northside USA Northside USA is an American footwear company based in Marysville, Washington. Northside, a subsidiary of Triple T Trading, was founded in 1985 and sells shoes in retail stores in the United States and China. The company's shoes, marketed towards "light outdoor recreation", are designed in the United States and manufactured in China.