Duluth Trading Company is an American workwear and accessories retailer. It's known for its durable, comfortable clothing designed for both men and women who lead active, work-intensive lifestyles. Their products include casual wear, workwear, and accessories, and they're particularly famous for their Longtail T-shirts, which are designed with an extra length to prevent them from becoming untucked. Founded in 1989, Duluth Trading Co. began as a catalog and online retailer. Over the years, it has expanded into brick-and-mortar retail. The company is known for its humorous, often quirky marketing style, including amusing and innovative ads that emphasize the functionality and comfort of their products. Duluth Trading Co. places a strong emphasis on quality, practicality, and durability in its product designs, catering to customers who value these attributes. The brand has developed a loyal customer base and has been steadily growing in popularity across the United States. Duluth Trading Co. went public in 2015, trading on the NSADQ stock exchange under the symbol "DLTH."