Stay ready for action with Oakley Flak 2.0 Alternate Fit sunglasses for men. Oakley's own frame material, O Matter, makes these wrap-style shades comfortable and lightweight while holding up against high impacts. Unobtanium enhances the grip at the temples and nose pads so these sunglasses stay in place no matter how hard you work out. The Alternate Fit keeps them from slipping off a low nose bridge or leaving marks on prominent cheekbones. From the sculpted temples to the curved fit, Oakley's sport-focused Flak 2.0 sunglasses take performance to new heights.