Sunglasses are an important part of outdoor activities and the Tifosi Mast Sunglasses are worthy of protecting you from the elements and the suns harmful rays. These sporty sunglasses are designed to increase their grip when the sweat drips down thanks to the Hydrophilic rubber ear and nosepieces that provide a no-slip fit, while the lens technology sharpens contrast, helps with depth perception and cycles from light to dark quickly for optimal performance in varying conditions.