The Ray-Ban RB3386 takes a 63mm or 67mm lens, both cut for its round plastic front and shorter 130mm arms. Compatible with Ray-Ban's round-frame line, this aftermarket set carries the same broad tint range as the rest of the catalog, from flat brown and grey through gradient and mirrored finishes, plus a photochromic grey and a clear AR lens.

Round lenses this size are common on pilot-style and retro frames, where the larger diameter is part of the look rather than a fit issue — so don't assume a 63mm or 67mm lens is oversized just because it reads large on the shelf. Gradient tints suit the round shape well, since the fade softens the transition at the wide lower edge, and a plastic front this size holds a gradient lens more evenly than a metal rim would.