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 ergonomcally 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.