I would say this helmet fits slightly small. I have a 56cm head and normally take a "small" but that was too snug for my taste, the "medium" was much more comfortable. I like brightly coloured helmets so this definitely fulfilled that requirement. Haven't had any visor fogging issues, I cannot attest to its hot weather ventilation since Autumn is here. I prefer the double D securing method so that's ok too. Opening the visor with a gloved hand was fairly easy but if opened too far seemed to go into its replacement position which was quite stiff to exit from one handed. I was told that thicker cheek pads were not available but that is only partially true - they are available in Europe (but are on back order till Feb 2027). As usual the patience of SBS shop staff is amazing and the eagerness to ensure you're happy is refreshing. Thanks!.