When you're pounding through the rhythm section and the track turns to fuzz, it's because your contact lens has bailed. We designed the MX L FRAME• to fit over your prescription glasses so you can leave the contacts in their case. These goggles include proven design features like flexible urethane construction, a non-slip silicone treated strap, triple-layer face foam with moisture wicking, and the clarity of an optically pure LEXAN® lens. It's fully compatible with an ATFM half mask and the Oakley standard tearoff system (sold separately).