I'm still not sure if they're getting darker! I haven't actually worn them in direct sunlight. How long do I have to be in direct sunlight for them to go dark? They went well with the Bose tempo and went in easily!
Durable Polarized Sunglasses For Men: Perfect For Fishing, Driving & Golf With 100% UV Protection By SUNGAIT
37 Review
Oakley Flak Jacket XLJ Sunglass Replacement Lenses & Sock Kit By BlazerBuck
39 Review
Mryok Replacement Lenses For Oakley Fuel Cell - Options
34 Review
Walleva Replacement Lenses Batwolf Sunglasses Men's Accessories
46 Review