The Double H® Gel-Cell™ work roper is composed of the ultimate in comfort technology. Ultra-Welt™ system works with the Gel-Cell™ insert, a non-memory polymer gel piece that adds comfort by reducing heel strike impace, for more all around comfort. An extra Gel-Cell™ is inserted in our Vitalize™ insole, giving you cushion in the ball of the foot. These two layers equal the ultimate in comfort! Leather lined. Double stitched welt construction. 1 1/4" heel height. Proudly made in the USA.