The Nike Flex Micro Boxer Briefs deliver optimal comfort and support, with 4-way stretch that lets you move freely during any activity. Sweat-wicking technology helps keep you dry, while flat seaming throughout helps prevent chafing—so you can feel confident and ready to tackle the day ahead. Fit & Design: Nike Dri-FIT technology helps you stay dry, comfortable and focused 4-way stretch provides optimal comfort and lets you move freely Brushed fabric feels soft against the skin Functional fly adds convenience