"My idea of design is a bit old-fashioned. It should be practical, functional, then look good - in that order," said Mr Graham Carter, one-half of the design duo Cutler and Gross who, 40 years ago, turned eyewear from a medical necessity into a key fashion accessory. The brand hasn't veered from quality design - each pair takes four weeks to hand make in Italy. With dark tortoiseshell square frames, make these your new everyday shades.

• Tortoiseshell acetate square-frame sunglasses
• Brown lenses, metal screws
• Handmade in Italy
• 100% UV protection
• Come with a black hard case and cleaning cloth