Revo Polarcast – Revo’s proprietary polarization technology that helps block glare from reflective surfaces like the ocean, snow, and the road.Serilium Lenses – the purest form of polycarbonate known to man, one of the only materials capable of withstanding high-velocity impact from objects like gravel.This creates a fit that is free from unwanted pressure points. Motion-Fit Design - the patented design positions your sunglasses to ideal locations on your nose and ears.Nylon Frame – a lightweight very durable material.The Revo Abyss, part of the Revo Nylon collection, features: