The lightweight tifosi radius clarion sunglasses are ready for any condition with its three easily interchangeable lenses the sleek half framed radius is a popular model with men or women seeking a compact design with a very low weight ndash just 24g vented lenses decrease fogging and the fully adjustable slip resistant hydrophilic rubber arms bend for the perfect fit virtually indestructible grilamid tr 90 nylon frame keeps the radius lightweight but flexible the gunmetal radius com