As mentioned, the high end Giros and I like some of the Uvex ones. Can't find a Scott helmet in the stores but they look nice on the website. I don't like the Bell Volt even though a lot of people really like theirs.
If you're talking about a "flat" one, no, there just wouldn't be much foam between your noggin and the street. I have the Bell Array and it seems to have slightly less frontal height, though....
Once you find one that seems sleeker to you, don't worry about it. Bike helmets are generally accepted by all as required and most non-riders don't even look at it oddly. While you think people are looking....they aren't. Also, IMO a nice pair of sunglasses reduces the effect....
The Kaser helmets seem to be a lot more slim design than any of the Giro or Bell helmets that I have had.
You may find that some of these manufacturers do not come to the US (if that is where you are).
I know that Met made a decision not to enter that market due to the liability laws in the US.
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