Cycling demands gear that's made for cycling, not designed for runners, hikers, swimmers, or trapeze artists. There are countless shorts, tights, and bibs out there, so it's about time bike-specific sports bras, like the Castelli Rosso Corsa Light Bra, became a common kit feature.Castelli's developed the Rosso Corsa in conjunction with pro racers, so it has the same real-world design expertise as your favorite bibs or jersey. Its focus is moderate support, to cope with the lower-impact demands of cycling, and breathability, to help fight off the sweat-on-the-way-up, freeze-on-the-way-down conundrum that can be the bane of your alpine rides. Firmly stretchy but not constrictive fabric provides comfortable support without allowing moisture to accumulate, and Tulle mesh inserts at the side, back, and front provide increased cooling and breathability. The straps are made from Giro2, the same soft, stretchy, and seamless material used in Castelli's top-shelf bibs, and the crossback strap design allows free shoulder movement so your upper body stays fresher and more comfortable on long rides.