The lenses of the glasses are great, they add color and provide great sun coverage. As a road cyclist that trains in Florida, sweat has corroded the magnet frame locks making them impossible to remove. I rinse with freshwater after every ride, but the corrosion still occurs rapidly. While the magnet system seems sleek on the surface, do yourself a favor and stick with traditional Pivlocks or another brand. The glasses are also extremely fragile, if dropped once from about shoulder height, the frame mounting parts that are attached to lenses can easily snap off.
Photos below show magnet corrosion. There also is noticeable residue from the gorilla glue I have used to reattach the plastic pieces back to the lenses.