The giro sonnet mips womens road bike helmet is a favorite in giro39s womenrsquos series collection offering acclaimed fit and performance for riders who enjoy great routes as much as a swift pace the slim shape offers great ventilation thanks to 25 wind tunneltrade vents and the comfortable convenience of the adjustable roc locreg 5 fit system and with the light weight and durability of in mold construction it wonrsquot weigh you down sonnet mips models are available with the mu