1. Fishing, Hiking, Camping and all other outdoor active people
2. For near-sighted people, while you wearing your glasses you can also add the sun glasses clips however the majority sun glasses only works as sun glasses.
3. Quick mode exchanging, change clips under bright sun light to dark color or to yellow color while driving in the evening.
How to choose size:
If your glasses Len: width <55mm, height<32mm, choose S size clip.
If your glasses Len: width <56mm, height<37mm, choose M size clip.
If your glasses Len: width <58mm, height<38mm, choose L size clip.
Please note the yellow color version is for night time use
1 Pair of glasses clips + plastic box