With the exception of the lens air scoops, the SL model maintains the same high performance features and lens technology. Fit & Design: High-impact resistant and lightweight polycarbonate lenses 5-base cylindrical shield lens for increased peripheral view and protection 360 degree visibility for unobstructed views and optimal field of vision Interchangeable scratch-resistant lenses provide 100% UV protection HYDROILO lens treatment repels water, dirt and oil Temple arm scoops to manage moisture Shatterproof and lightweight Grilamid TR90 frame Ultra-grip rubber nose pads and tips for a secure fit no matter how much you sweat Additional Details: Comes with a hard case, microfiber cleaning bag, alternate fit nose pad and clear replacement lens