Dervin Square Sunglasses for Men and Women. This versatile, timeless style features a signature thick frame and Square shape. Square frames are very versatile and can be worn at the beach with your swimsuit or for a walk downtown in a pair of chinos and a polo shirt. They can even be worn with formal attire when done so properly, and fits most face shapes and outfits. These Stylish Unisex shades are Suitable for all types of faces and Size. Suitable for getting great look with Sqaure frame Sunglass.