Wm's Arch Rock Convertible PantBelt loops are back! And that's not the only upgrade on these best selling stretchy mountain favorites. Now featuring an abrasion resistant recycled Nylon blend that breathes easy when you're working hard and gives you the leg up when you're up against rough terrain. Get an early start on the trail with pants on and zip down to shorts when the pace, temps, or incline pick up. These quick drying convertibles are perfect for saving room on backpacking