The low-rise Ex Officio Men's Give-N-Go Sport Brief air-dry within a couple hours so you can wash as you go and carry fewer pairs of underwear on your next journey. Ex Officio made the briefs from moisture-wicking Give-N-Go stretch nylon and gave them a Silvadur odor-resistant treatment to keep them fresh after a few days on the road or trail. A terry elastic waist in these low-rise briefs provides a comfy fit.