Smooth, Sweat-Wicking Microfiber Make your first layer, your best. Start the day with Nike Essential Micro Boxer Briefs, made from stretch microfiber that feels good against your skin. Featuring Dri-FIT technology that wicks away sweat while managing odor, plus flat seaming to help prevent chafing, this supportive, performance underwear is just right for every body. SWEAT-WICKING fabric helps you stay dry and comfortable. STRETCH material enhances your freedom of movement. WIDE HEMS help keep underwear in place. Imported.