Castelli is synonymous with Italian craftsmanship in our book, and with jersey's like the Climber's 3. 0 Limited Edition, we see just how far the brand has come in the cycling industry. The brand seeks to marry aerodynamics with perfect fit and comfort, and that's why the Climber's 3. 0 is designed to be a lightweight aero jersey that will excel at dealing with the rigors of road racing in the heat, in the mountains. It sees maximum aerodynamics and a soft stretch that works with your body on your ride. It's moisture-wicking, but it also blocks more than 90 perfect of UV rays for a protective jersey that doesn't quit. Even if you're not pro racing, you'll appreciate the stretch and quick-drying features of the Climber's 3. 0, not to mention the additional airflow for when the sun's beating down and you're still miles out at the end of an arduous stretch of riding.