Bern Women's Berkeley Helmet Lightweight PVC shell is constructed with a tapered edge and a seamless finish for an excellent strength to weight ratio Liquid-injected, Zip Mold hard foam maximizes impact protection and is engineered to create a thinner, lighter and lower profile helmet 11 channeled vents pull air through the front vents and out the exhaust ports for excellent ventilation Comfortable molded channels adapt to eyewear or sunglasses 2 goggle clip locations for a custom fit