Helmet of incredible quality with the main characteristic being ease of use! The buckle is very easy to fasten and the use of the 3 air vents is perfectly sufficient for ventilation in both winter and summer. The visors (both the main one with pinlock and the additional one for the sun) provide excellent visibility both at night and in the morning with a lot of sun... However, it has a flaw. In winter, the inner visor (the black one that comes out from the slit at the top) is completely useless and even dangerous! As long as it is hidden, it fogs up from your breath and if you try to lower it with the special lever while in motion, you won't see anything and you'll hit your face... You have to leave the outer visor open (do it with caution) until the fog clears and then lower it to face the sun. I wonder why the Japanese didn't think to add a vent at its height to keep it fog-free while hidden!