I wanted Atmos...and wanted to buy it online. So i went to an LBS (Palo Alto Bicycles) and tried on different types of helmets. Just let you know, the Atmost has a pretty weird shape and need to be tried on before purchase. Thank god for the LBS since I'm so close to buying the atmos online. I ended up with the Bell Sweep R(team CSC color) and not only does it fit me perfectly, I find the adjusting system much more convenient than the Atmos' system. And did I say it costs less than the atmos and looks super sexy? However,I paid 48 dollars in excess buying from the LBS. So my advice is to tried it on at the LBS and hit the Bay. $140+ USD for a helmet is ridiculous.