Bollé - Juliet, No Lens Reference, Medium, Snow Helmets, Feminine, Adult |Black Matte and White Pearl Matte[Key feature : Adjustable ventilation system and Air Flow extractor] Choose between warm and cool, with increased ventilation. The adjustable ventilation system allows you to open or close vents with a simple movement. Air channeling within the shell for optimized ventilation [Protection : AVID Progressive EPS] Protection, lower weight and optimized air flow.. An EPS structure that provides progressive dampening, lower weigth and optimized air flow.