Brand New Pair of Dr. Comfort’s Endurance Plus Men’s Athletic Shoes. The Endurance Plus will keep you active in style while also maintaining comfort. The Endurance Plus features a leather and mesh upper with a traditional lace-up style. Available Sizes: 6-12, 13, 14, 15 in varying sizes. Available Widths: Medium, Wide, Extra Wide. Manufacturer Part Number: 7310.