PORTMAN SUN Sunglasses by Blake Kuwahara. Color: Light Brown Horn, Light Grey Horn, Size: 46-22-145. The PORTMAN SUN carries the same wayfarer charm as its optical counterpart, adding a layer of premium UV protection. The double-frame design in bold acetate and sleek contours ensures these sunglasses are both stylish and sun-safe. Thanks to the lightweight acetate, they offer unparalleled comfort even on the longest, brightest days. A perfect balance of form and function, the PORTMAN SUN is sure to make your summer truly fashionable.