The Pearl Izumi Attack Sleeveless Jersey is the perfect for cool days and light enough to be worn for additional sun protection in hot weather. Its form-fit light polyester jersey with UPF 25 sun protection, giving you a light quick-dry polyester fabric that wicks moisture. Its YKK semi-locking front zipper adjusts venting easily on the fly while the traditional 3 rear pockets. A BioViz® powerful reflective elements that reach 100 meters for night visibility. The Attack Jersey is for the dedicated road cyclist and features sleek thoughtful details, premium materials, and time-tested quality.