NASH Eyeglasses by Blake Kuwahara. Color: Ash, Birch, Chestnut, Noir, Size: 53-21-140. Bringing a sense of quiet substance with their sturdy square frame, the NASH eyeglasses manage to remain light and sophisticated thanks to their soft, exquisite color palettes. The use of top-grade acetate ensures a lightweight, comfortable fit no matter how long you have them on. With its unique blend of strength and grace, the NASH guarantees you’ll always feel grounded in style.