1. Frames with a mottled pattern resembling turtle shell

2. Sunglasses with a vintage or old-fashioned design

3. Lenses that darken in sunlight and lighten indoors

4. Semi-transparent frames that allow light to pass through

5. Lenses that reduce glare and improve clarity

6. Frames with adjustable nose pads or temples

6. Classic sunglasses with large teardrop-shaped lenses

7. Fluid or cloth used to remove smudges and dirt

8. Distance between the lenses on a frame

9. Color applied to lenses to reduce brightness

10. Sunglasses without frames on the bottom

11. Transparent material that covers the eyes

12. Arms of the frame that extend over the ears

13. Sunglasses with upswept frames resembling a cat's eyes

14. Frames made of metal for a sleek and shiny look