Quick Summary
Ray-Ban RB 0840S Black/Green Unisex Sunglasses are a sunglasses model identified by the RB 0840S name and the stated 51/21/145 size. The black and green colour combination is part of the named variant, so it is worth checking that this is the exact version you want before choosing an offer.
The main buying checks here are the model designation, colour, size and whether the fit suits the intended wearer.
What to Compare Before Buying
- Model: RB 0840S should match the exact pair you want, especially if you are comparing similar Ray-Ban styles.
- Size: The stated 51/21/145 sizing is an important fit check for sunglasses, so compare it with the fit you prefer.
- Colour: Black/Green is part of the variant and may be a deciding factor if you want a specific look.
- Wearer: The unisex designation makes the style broadly positioned for adult wearers, but the fit still depends on the size shown.
Before You Decide
Confirm the RB 0840S model, the Black/Green variant and the 51/21/145 size before choosing an offer. If you want a different fit or finish, compare those details first so you select the correct pair.





