Pewter blue is one of those colours that's difficult to pin down. It shifts between grey and blue depending on the light, which gives the crystal acetate an ever-changing quality that keeps it interesting. The rectangular shape anchors all of that movement, giving the frame a clean, reliable structure beneath the colour. Blue-tinted lenses extend the frame's cool tone into your field of vision, creating a look that feels unified and easy on the eye. In bright sunlight, blue lenses reduce glare comfortably without making everything feel too dark.