So I have a head with weird shape and over the years have tried many brands. For me this helmet is the best fitting, nice and square on head AND no bouncing around on rough terrain. The days are just warming now in Colorado and have noticed it is a little warm but I take a little warm vs bouncing all around on my head.
I am a big fan of Smith helmets and its honeycomb lining... the honeycomb keeps the bugs out. The Sessions was to be my third Smith helmet... however when this helmet arrived I was disappointed to learn the honeycomb is only on the sides... and the top is open... my first two Smith helmets have a complete honeycomb lining.... I will be returning the Sessions helmet