I have been wearing Torege polarized sunglasses for cycling for over a year. When I first received them I am thinking cheap plastic because all of my other sunglasses are the Maui Jim brand. Granted that is a great brand and I like them a lot but the Torege are awesome without the worry of breaking and out a lot of money. Great glasses for activities, or be bold and just wear them as everyday sunglasses. Little loud for my taste as a daily sunglass but go big or go home! Love these sunglasses because it's easy to change out the lenses. Yes, at first there is a lot of hesitation and it feels like you would break them. I recall even watching a few videos on how to replace the lens. It really is easy and I do replace the blue to yellow lenses for night/evening cycling and they work great! Lightweight, blocks the wind, Lenses do protect the eyes from the sun, sunglasses don't slide down the nose, and I don't have one negative comment. Awesome glasses for activities and a total of 5 out of 5 stars. Again, I have been using Torege sunglasses for over a year on a daily basis.