Fits nearly perfectly to skull shape (nearly completely round), the fit is just right. It hurt a bit after wearing it for half an hour, in the first week. But the padding has started to conform to my head now, and my neck has started to adjust to the heavier weight of a safer, ECE rated helmet. The spoiler is loose enough to break away or snap in a real crash, so as to not interfere with the protection capability of the helmet (nearly all helmets are rated without their spoiler attached), unlike any other helmet I've seen in this price range-they are all stuck on rigidly. The mix of white and black is pretty and unique, the sun shade covers the top half of my vision more if I lean forward in a sport bike posture. Nearly all the padding is easily removed and put back in for a wash or to install an intercom. Wind noise starts around 70kph and intensifies, but I use this thing as a safer, everyday commute helmet, not for highway rides; so it's fine for Indian road speeds. The "thunder" line is quite old, so there is plenty of informational and tutorials for everything related to this helmet.