Every cyclist requires a great wind vest. The perfect apparel for the perfect ride, that's what the Speicalized Prime Series is all about. The best fabrics, constructions, and technologies go into these pieces, and the Men's Prime Wind Vest is a perfect example. A fully windproof front fabric is paired with partial elastic at the waist and shoulders and a breathable mesh on the back to keep the chill off of your chest without overheating. Further, the Vision® zipper is super easy to zip and unzip for hot climbs and cool descents. The Prime Wind Vest was created to be as effective, light weight and packable as possible, ensuring it easily stows in a jersey pocket with room to spare.