The Saxx Men's Ultra Boxers with Fly are made from an all-natural viscose fabric derived from plant cellulose that creates an unbeatable blend of breathable, moisture wicking action. Every pair of Saxx underwear houses their patented BallPark Pouch construction, a 3D Hammock pouch designed for contact-free support. There are also mesh panels that prevent skin-against-skin friction, and no exposed stitching Flat Out Seams offering no-chafe comfort no matter how long the road. Taking a 360-degree view of the body, Saxx consider fit, feel and function, and use nine panels of fabric to create three-dimensional shaping around your glutes, thighs, quads and hamstrings, including the built-in mesh panels of the BallPark Pouch. Elevating your everyday with a slightly looser fit combined with super-softness and maximum breathability, these briefs also feature a fly and an anti-roll waistband for comfort.