high-performance sports sunglasses from oakley. with the encoder, oakley offers you a high-performance sports goggle that works perfectly thanks to the flat temples, especially in combination with helmets and caps. this model is also equipped with ventilation slots to provide even more reliable protection against tarnishing. it's as light as a feather and its prizmâ„¢ lenses provide clear, distortion-free vision. especially at high speeds, this technology makes an enormous difference.framethe lightweight, yet virtually indestructible o matterâ„¢ frame material makes you almost forget you're wearing sunglasses. due to the three-point fit of the sunglasses, the lenses are always held in the correct position and there are no unpleasant pressure pointsprizmâ„¢prizmâ„¢ is the revolution in lens optics. by fine-tuning individual waves of colour, prizmâ„¢ sharpens visual acuity to reveal nuances that would escape the naked eye. with ordinary sunglass lenses, the environment appears dull and flat. prizm lens technology makes everything look alive and vibrant.