I was super happy to add these to my collection. The adjustable temple tips ensure a comfortable and versatile fit. You can relax them for daily use or make them fit a little more snug to ensure they wont go anywhere if you are going to be active. My only two comments on these are that A) I wish they had the rubber inlayed nose-pads like the new Spinshield, and B) I was a little thrown off when I unboxed these due to the fact that they were darker all around than I thought they would be. The impeccable lighting in the pictures give the impression that the Demi Turtle AND green lenses allow quite a bit of light to pass through making the components seem very translucent, but in reality even in full sun these lenses look almost black which I was most bummed about. regardless of my opinion on these two points, these are still a great purchase and are my daily wear.