If the Sweep-R fits you nicely, be aware that the Atmos might not fit you at all, and vice versa.
I have a Sweep R with I LOOOOOVE tremendously. I had a great deal (half-price) on an Atmos last spring so I got one as well. Wickedly good looking helmet, but it's really not comfortable on my head. I have worn it for a while because it was the only helmet I had with me while on a long trip away from home, but I was most happy to find my Sweep waiting for me at home.
The Eclipse fits differently. Not bad on me. It's also very light and way cheaper than the Atmos, which is overrated in my book...



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