RIETVELD SUN Sunglasses by Blake Kuwahara. Color: Cloud, Midnight, Size: 57-19-155. Transforming your favorite shield shades into something truly remarkable, the RIETVELD SUN brings a dazzling double-layer design to the forefront of your sunlit style. With a clear bridge that catches light and draws the eye, it showcases two layers of premium acetate in vivid summer colors. Despite their robust look, these sunglasses are light as a feather and perfectly comfortable for long, sun-drenched days at the beach or out in the city. Try the RIETVELD SUN and see for yourself.