The Specialized Men's RBX Long Sleeve Jersey strikes a fine line between all-day comfort and training-specific performance. Its VaporRize fabric wicks moisture and dries quickly when things get sweaty, and it's remarkably light and comfortably soft for wearing all day. Stretchy mesh panels the jersey's back for better mobility and airier ventilation. Specialized fitted it close to the body, but not constricting to ensure daylong comfort. It has a full-length front zipper that glides on and off with ease, and it offers ventilation when the sun's extra warm. The added sun protection and long sleeves ensure solid coverage from the sun, too.