The glasses stay put nicely when riding chunky sections of trail. Night vision is pretty clear and the glasses don't appear to darken anything at all when it's dark out. They do a decent job during the day but don't expect the photochromic lens to darken brightness too much when the sun is facing you. I mainly got these for afternoon/evening ride eye protection anyway so I'm happy. The price point is good, but if your activity is strictly day time maybe there's something better out there but I'm keeping mine so I'll never know. The zippered soft case it came with makes for a nice place to store things but it's a little bulky just for storing the glasses.