Green Woolen Combat Toque Inner worn inside the helmet. Made by Parkhurst. Dorothea Knitting Mills Limited is the parent company of the Parkhurst, Cotton Country and Outdoor Edition family of brands. DKM was founded in 1926, by Louis Borsook, as a wool felt beret manufacturer. Named after his wife, who was the first mother to ever graduate from the University of Toronto medical school, DKM has grown to become one of North America’s largest knitwear and accessory manufacturers.