The SR4105 uses a folding hinge built into a square plastic frame, so the temples fold down to a smaller footprint than a fixed frame for tossing in a bag or pocket. It measures a 50mm eye with 140mm temples, runs a UV400 polycarbonate lens, and comes in tints ranging from classic solids to mirrored, gradient, and photochromic options, the same spread offered across the rest of the SR4105 line.

This colorway keeps a standard black finish rather than a flattened matte coat, so the plastic has a touch more depth and sheen under light instead of a completely flat surface. It's the more conventional black option in the line, without the matte texture's fingerprint- and scratch-hiding qualities, which makes it simpler to keep looking clean with an occasional wipe rather than special care.

Frequently asked questions

Is this just a Ray-Ban or Oakley shape with a different label on it?

The SR4105 is an independently designed SR frame — its Square shape takes inspiration from popular styles, but it isn't a replica of any Ray-Ban or Oakley model, and it isn't affiliated with either brand.

What size is this frame, and how do I know it'll fit my face?

The SR4105 has a 140mm temple length in a Square shape; if your current glasses feel right on a similarly sized frame, this one should sit comparably across the bridge and behind the ears.

Can I just pop clear lenses in myself without going to an optician?

If you don't need a prescription, you can fit a clear CR39 lens into the SR4105 yourself along the Square rim's groove — this is an independent SR design, not a Ray-Ban or Oakley product — though an optician is recommended for anything requiring correction.

Are these prescription glasses, or do I need to add lenses separately?

The SR4105 ships as a complete frame only, ready for your optician to glaze with prescription lenses of your choice, or you can fit a clear CR39 lens yourself if you just need a non-prescription pair.