Under Armour Men's HeatGear 6" BoxerJock 2-Pack O SERIES  The Original Performance Underwear that rendered everything else obsolete. UA's signature Moisture Transport System and temperature regulation gave athletes something they'd never had beforea performance alternative to all the other underwear in their drawer. Forget your old underwear that bunches up, wears out, or loses its shape; UA's O Series underwear stretches, recovers, and fits exactly how you want it to. Anti-Odor Technology prevents the growth of odor causing microbes