SUNVP Helmet Bicycle Ultralight Outdoor Adult Helmet Bike Integrated Fraction Multi-sport Road Bike Helmet SIZE: 21.26''-24.41''. Fits most adults. Now buy one you will get a free bike taillight ! Weight: 0.49LB. We make it lighter, cooler, and wilder. All outer vents and internal air channels have been greatly enlarged, pushing the cooling effect to new levels never achieved before in this industry. Material: High grade PC AND EPS (Imported). The vast majority of other bicycle helmets on the market are made from EPS. High quality and durable Cycle helmet manufactured with safety in mind. BUY One SAVE 2% , BUY Two SAVE 5%  We love our customers and want them to love us too. If you buy 1 or 2 or more of our bike helmet you can immediately save 5% at checkout (no coupon necessary). Buy for a friend or loved one and save together. Breathableandcomfortable for your most satisfactory pair of helmet. Great for cycling, riding,mountaineering, cyclcross and motocross.