The Giro Wind Chrono Expert vest is crafted from 2-way stretch windproof ripstop fabric, making it an excellent barrier against wind and chill. It conveniently packs into a jersey pocket. The vest's form-fitting design includes a DWR coating to resist dampness and grime, while a perforated back panel optimizes temperature and moisture management. Genuine 3M Reflective logos and highlights enhance visibility in low-light conditions.