Cutler and Gross 1378 Blue Light Filter Round Opticals (Small) Colour:Crystal Peach on Striped Brown and a matte finish for

and a matte finish for anyone who prefers their black to stay flat rather than glossy

Rose is the warmest of the four

Titanium is why the frame feels lighter on the nose than its size suggests

Sizing is offered at a 49mm or 51mm lens width: the measurement straight across one lens at its widest point

Sizing: 46-22-145 means 46mm lens width

Cutler and Gross 1378 Blue Light Filter Round Opticals (Small) Colour:Crystal Peach on Striped Brown and a matte finish forSeven colourways is a lot of choice for one round frame, and the 1378 uses them well. Black and Striped Dark Green hold the sober end. Dark Turtle and Black on Havana bring classic mottled warmth. Crystal Peach on Striped Brown and Striped Blue Havana on Powder Blue show off the layered two tone work Cutler and Gross does so well, while Mud on Jet Engine Grey is the most industrial of the set. This is the small version, with a 49mm lens width. That is