On days when a little hiking is in order, or if when the sun feels like it's aimed directly at you, ventilation can save the day. However, weather can be unpredictable, especially in the mountains. The weatherstrip vent shield equiped on Giro's line of snow helmets gives you the ability to cover your vents if the weather decides to get nasty. This easy to use shield is secured to the inside of the helmet by velcro tabs, making the on and off process a breaze.