Carhartt, is a U.S. based apparel company founded in 1889. Carhartt is known for its work clothes such as jackets and coveralls and vests and shirts and jeans and dungarees and fire resistant clothing.Carhartt, is a U.S. based apparel company founded in 1889. Carhartt is known for its work clothes such as jackets and coveralls and vests and shirts and jeans and dungarees and fire resistant clothing.