Stay cool and comfortable with the Under Armour Men's Tech Mesh Boxerjock Briefs 2 Pack. Made from 92% polyester and 8% elastane for a soft feel, the 4-way stretch material allows for wide-ranging motion. The sweat-wicking fabric transports moisture from your body to help you stay dry, while the anti-odor technology hinders the growth of odor-causing microbes. The mesh design facilitates airflow for breathability.