Belt loops are back! And that's not the only upgrade to these best-selling, stretchy mountain favorites. Now featuring an abrasion-resistant recycled nylon blend that breathes easily when you're working hard and gives you a leg up when you're up against rough terrain. Get an early start on the trail with pants on, then zip down to shorts when the pace, temps, or incline pick up. These quick-drying convertibles are perfect for saving room on backpacking trips when you don't have room for both shorts and pants, and ideal for light-and-fast summit days when you need to change as quickly as the conditions. A PFC-free DWR (Durable Water Repellent) treatment adds another layer of weather protection to these comfy, lightweight bottoms.