KNOWLES Eyeglasses by Blake Kuwahara. Color: Crystal, Wine, Size: 52-18-145. Offering sharp angles and clean lines, the KNOWLES eyeglasses create a square cat-eye frame that’s both daring and refined. The bold silhouette is softened by translucent layers of acetate, giving it an unexpected lightness and grace. The sturdy acetate build ensures these glasses survive through any amount of wear and tear on a daily basis. Take your style and comfort to new heights with the KNOWLES.