Gunnar Optiks RPG Advanced Gaming Eyewear: * Adjustible silicone nose pads provide a customizable fit * Soft thermoplastic rubber tipped temples grip lightly to ensure proper location of the optics without slippage * Aluminum-magnesium frame construction generates proper strength and optical stability through a hybrid lightweight metal alloy * Hidden spring hinges flex to ergonomically fit a wide variety of head and face shapes * Lightweight construction and proper weight balance guarantee long wearing comfort without pressure points or fatigue * Micro-engineered lenslocks securely retain lenses without undue stress or distortion of the optics * Ultra detailed quad-core hinge design ensures frame flexibility and durability * Wide format lenses create a panoramic viewing field for high resolution viewing