Break records in the SAXX Underwear Kinetic Boxers. Built for high-output activities like marathon training and back-country runs. Boxer brief crafted from a breathable stretch blend for all-day comfort. Semi-compression fits slim through the thighs with Action-Stretch qualities. Three-D Fit uses nine panels to create 3D shaping around glutes, thighs, quads, and hamstrings. Moisture-wicking fabric draws perspiration away from the body and towards the surface where it can evaporate.