"Men's Korsa® Solar Shade Long Sleeve: When the sun is out and the miles are long, the Men's Korsa Solar Shade Long Sleeve gives you the coverage you want without the heat you don't. This lightweight long sleeve top is built for warm-weather training runs, road workouts, and outdoor activity where UV protection matters. The UPF 50 performance fabric blocks harmful rays so you can stay out longer without worrying about sun exposure, and the 4-way stretch construction moves with you rather than against you.The Solar Shade is made from an 82% polyester/18% spandex blend that wicks moisture away from your skin and dries quickly during harder efforts. Flatlock seams sit flat against the body to reduce friction on longer runs where chafing becomes a real concern. The semi-fitted cut works well on its own or as a base layer when temperatures shift, making it a practical option across a range of training conditions.Why Our Fit Experts Love It""I reached for this on a sunny morning long run and was surprised how comfortable it felt even as the temperature climbed. The fabric stayed light and dry, and I didn't notice the seams at all - which is exactly what you want when you're a few miles in. It's a solid go-to for anyone who trains outside and wants real sun protection without feeling like they're wearing extra layers."" - Dave, Road Runner Sports Fit Expert, San Diego, CAWho It's Best ForThe Korsa Solar Shade Long Sleeve is a strong choice for male runners and outdoor athletes who train in sunny conditions and want UV protection without sacrificing breathability or range of motion. If you log miles in warm weather and prefer the coverage of a long sleeve over sunscreen alone, this top is worth considering. It also works well for runners who deal with chafing on longer efforts, thanks to the flatlock seam construction. VIP Family members can take the Solar Shade Long Sleeve for a 90-Day test drive with our Perfect Fit Guarantee."