Make your first layer your best. Start the day with the Nike Essential Micro Trunks, made from stretch microfiber that feels good against your skin. Featuring sweat-wicking technology, plus flat seaming to help prevent chafing, this supportive, performance underwear is just right for every body. Fit & Design: Dri-FIT technology helps keep you dry and comfortable 4-way stretch provides optimal comfort and lets you move freely Wide hems help keep underwear in place Flat seams feel smooth against your skin