I have two helmets, both made by Bell. The first one was purchased at a bike shop for about $50. The second was purchased when I was out of state, and forgot my helmet. There were no bike shops nearby, so I bought it at Wal-Mart for $20. The only difference between the two helmets is the size adjustment. The more expensive one has a ratcheting dial to adjust for head size. The cheaper one uses elastic. They both work fine.