Concerning fit. Wife got a Bern Watts in medium, and it fit me great with adjustment open. I tested a Bern Macon in Medium and it fit right. So after ordering this Allston in Medium, it was a little too tight. Returned for a Large, and with 30% on the adjuster, it fits great. This may work out as a plus since I now have room for a balaclava for cold rides. It is strange that it labels that the visor can be removed, but it is integrated into the rim padding/adjustable band. Helmet does not include a non visor band. Must be an add on option. I got a chance to test fit a MIPs version of this Allston, and it runs even smaller. The weight of the helmet is also lighter than the Watts, since I realize not that it is totally different design. The Watts is a hard outer shell with separate padding, like a motorcycle helmet. The Allston is like a traditional bike helmet. Single piece molded. Both are very hard surface, with no flex. They both feel well made.
Reviewed in the United States on January 28, 2019 by Amazon Customer