Style 4170 Mid rise and moderate coverage No-fly design Heatwick Technology Pouch actively pulls heat away from the skin to help stop sweat before it starts Breathable mesh pouch enhances airflow to keep you cool? Help stop sweat before it starts with Jockey Infinite Cool Microfiber Stretch Brief men's underwear. With a cooling Heatwick Technology Pouch that actively wicks heat away from your skin, this stretchy pair goes beyond comfort and helps keep you cool where it counts.