After 30 years of riding (20 without a helmet) a friend getting hit by a deer and reading about some other horror stories, I decided to try a helmet. As with most things, I sometime regret buying cheap, but never regret buying best. Research told me Arai makes one of the best. After trying on several in the store, this one (their RX-Q) really jumped out. It's the lightest, they moved the side back so I don't even see the helemt on the sides. It has several vents. The sales guy (who races bikes) said they've done heat studies and this is waht cooler than other helemts. After five minutes on the rode, I am HOOKED! Still have a half shell for running to the local watering hole, but this created a whole new riding experience for me! I am glad I bought it, and would strongly recommend. As a long time lidless rider, I NEVER thought I could even put one on, and here I am bragging about it.