The giro sonnet womens road bike helmet has an abundance of great features as well as great style and is a definite favourite from girorsquos womenrsquos series the in mold construction ensures you get great ventilation and strength at a low weight to further increase ventilation this helmet has 25 wind tunnel vents that will ensure fresh cool air runs over and around you head thanks to the combination of active vents and internal exhaust channels this giro womenrsquos road