"Men's SAXX® Multi-Sport Mesh Boxer Brief Fly: The SAXX Multi-Sport Mesh Boxer Brief Fly is a men's performance boxer brief built for athletes who need reliable support and comfort across any training day. Whether you're logging miles on the road, grinding through a gym session, or moving between workouts, this underwear stays out of your way so you can focus on the effort. The slim fit and 6"" no-ride-up leg keep everything in place, and the fly opening adds everyday convenience without compromising the fit.The BallPark Pouch® PRO is the centerpiece of this boxer brief - a structured support pouch that keeps things secure and chafe-free through every movement. Flat Out Seams® eliminate friction points, and Three-D Fit™ construction shapes the fabric to move naturally with your body. The breathable mesh fabric is lightweight and quick-drying, with 4-way stretch and moisture-wicking properties that keep you comfortable during harder efforts. Stop Drop Technology® in the pouch liner manages post-bathroom dribbles, which is a small detail that makes a real difference over the course of a long day. The 88% polyester/12% elastane construction is odor-resistant and easy to care for, so these hold up well through regular training use.Why Our Fit Experts Love It""I reach for these on back-to-back training days because the mesh keeps things cool and the BallPark Pouch PRO actually stays put - no adjusting mid-run. The no-ride-up leg is the real deal, and the Stop Drop liner is one of those features you don't know you needed until you have it."" - Dave, Road Runner Sports Fit Expert, San Diego, CAWho It's Best ForThe SAXX Multi-Sport Mesh Boxer Brief Fly is a strong choice for men who want performance underwear that holds up across multiple activities - running, gym training, cycling, or any sport that demands consistent movement. If you tend to run hot, the breathable mesh and moisture-wicking fabric will help you stay comfortable. The slim fit and 6"" leg work well for athletes who want a low-profile option under shorts or tights without bunching or shifting. VIP Family members can take the Multi-Sport Mesh Boxer Brief Fly for a 90-Day test drive with our Perfect Fit Guarantee."