Costa Del Mar Reefton Polarized Sunglasses - Matte Gray/Blue - With 12 different river systems less than an hour's drive from town, it's no wonder New Zealand's Reefton is world-renowned for its freshwater fishing. These size large frames are the perfect companion to explore any body of water and will stay put on larger heads under any condition thanks to their co-molded temples, Hydrolite nose and temple pads, and cam action spring hinges. The Costa sunglasses ‘fit' guide is a range from Narrow, Regular to Wide with most people choosing Regular. Fit is a combination of both the size of the sunglasses and the features of the frame, together. The features of our sunglasses influence the way the sunglasses fit, like the hinges and temple construction. Use the ‘fit' guide to select a Costa sunglass frame that will be comfortable and perform for you.