Western meets the next generation of technology. As comfortable and lightweight as a running shoe, the Primera won't let you down when you're at your best. Bonus: StretchFit makes it easier to pull on and expands to fit a wide range of calves. ATS® improved support. Removable All Day Cushioning insole. Full-grain leather foot and upper, with an intricate six-row stitch pattern. Lightweight and flexible bantamweight™ sole for durability.