I don't wear a helmet during hunting season as I know the trails I ride to and from the stands. However, I'm going to ride on some trails open to the public and am not familiar with the terrain. That said, do you have any guidance as to a good helmet? I'd like to get one with a face guard and shield that lifts up. I do wear glasses. A helmet might be nice when making a run to the distant deer stands in the morning when the temps are below freezing. Thanks for any advice.