Very comfortable. I can wear these all day without the ...
Very comfortable.  I can wear these all day without the usual pain of feeling like something hurting behind ears or sides of head.  Fits my face perfectly (for reference, I have a small head).  These are not sunshades, but they really do filter light so I can use them in the sunlight without getting headaches or migraines.  I like the block on the sides, which helps filter out more light (to me).  I can also use them inside buildings comfortably.  I use them mainly when I am driving.  It also helps lessen the halo effect.
Rating: 5 stars