Bought these for a canoe fishing trip because the Harrier was out of stock in my strength in the polarized bifocal. They're nice looking and I like the convenience of being able to hang them around my neck rather than having to risk portaging them in our backpack. The polarized lens is a must for map reading and seeing rocks, logs and fish at the surface, and these are good polarized lenses. Not too dark, not too light. Sadly, this frame is too darn deep for my head, and I constantly have to push the frame back up to my face. I prefer the snug fit of my Harrier soft headband. Check your measurements and purchase early!