Yacht Ensigns Yacht ensigns are constructed with a high tenacity nylon creating the highest quality, greatest fade resistant nylon manufactured for outdoor flag use. Embroidered design, lock stitched sewn stripes, and the durable polyester heading are featured on this flag. The fly-end is finished with four rows of superior lock stitching for a highly durable reinforced outdoor weather product. US Jacks US Jacks are manufactured using our premium embroidered glossy stars and are finished with the highest durable polyester canvas heading, reinforced with precision stitching and spurred brass grommets. Make the most of the premier product to display a tradition that dates back to the early days of sail.