I primarily bought these sunglasses for biking in early mornings with very low light. I want to protect my eyes from bugs, dust, tree branches, etc. so biking without eye protection isn't great. I love the lenses because they change color very fast. I even wear these sunglasses as safety glasses when mowing the lawn and using a string trimmer. My only gripe with these are the arms are very tight to the head, so I can't wear them for extended periods like my other Oakleys. I also wish Oakley made interchangeable lenses.
Do long hard pack gravel rides. Previously purchased cheap China look alikes. No comparison! Theres a reason things cost more. Quality of workmanship,materials used and how well thought out design of glasses for comfort and functionality. Lenses breath due to slits ,helping in fogging. Anti- slip nose piece and ear arm to hold fast. Did I mention these glasses are very light and sharp looking. This is a no brainer. Money very well spent