Fit, honestly.

60▫15▫145, in a front measuring 140mm hinge to hinge. Those are the frame maker's published figures, from their own size diagram. Here is how to check them against your own face, and which of the three numbers actually decides whether a frame fits.

How frames are sized

Every frame carries three measurements in millimetres, always in the same order: lens width, bridge, temple length. A fourth number, the front width from hinge to hinge, is the one that actually decides fit, and it is the one most shops leave out. All four are below.

lens 60mm bridge 15mm front 140mm lens height 50mm temple 145mm
60▫15▫145 · front 140mm · lens height 50mm. Figures published by the frame maker on their own size diagram.

If the three numbers on a sunglasses arm are new to you, the journal has a plain guide to what 60-15-145 means and how to measure your own face.

Which number to trust

Front width. Lens width is the number printed on the arm, but it describes one lens, not the frame, and two frames with identical lens widths can sit differently because their bridges differ. Measure across your own cheekbones at the widest point and look for a front within about 10mm of it. 140mm suits a face of roughly 130 to 150mm.

There is one thing worth naming, because it looks like an error and probably is not. The frame maker's attribute table says the lens is 5.2cm while their own size diagram says 60mm. Measuring that drawing against its own 140mm scale, the lens including its rim is about 60mm and the glass alone is about 54mm. So the two numbers are most likely the lens opening and the glass, not a contradiction. 60mm appears here because that is the figure their diagram labels, and it is the one comparable to the lens width printed on any other frame. A ruler settles it, and when one has been across a pair those numbers replace these.

The numbers

The measurements

Lens width60mm
Bridge15mm
Temple145mm
Lens height50mm
Front width140mm
ShapeRectangular
FramePlastic
LensTri Acetate Cellulose
FilterPolarised
UVProtective coating, cut-off not stated
SizingAdult

Figures published by the frame maker on their own size diagram.

Questions, answered

What size are these?

60▫15▫145, in a front measuring 140mm hinge to hinge, with a 50mm lens height. Those are the frame maker's published figures, from their own size diagram, and that line appears beside every one of them.

Will these fit my face?

Measure across your cheekbones at the widest point. A 140mm front suits a face within roughly 10mm of that, so about 130 to 150mm. Below 125mm this will read as oversized and no tint fixes that.

What do the three numbers on a frame mean?

Lens width, bridge width and temple length, in millimetres, always in that order. On these that is 60▫15▫145: a 60mm lens, a 15mm bridge and 145mm arms.

Why does the listing give two lens widths?

Because they are probably measuring two different things. The maker's size diagram says 60mm and their attribute table says 5.2cm. Measuring their own front elevation against its own 140mm scale, the lens including its rim comes out around 60mm and the glass alone around 54mm, which is close to the 5.2cm. So one figure is the lens opening and the other is roughly the glass. 60mm is published here because that is what their diagram labels. A ruler settles it and those numbers will replace these.

How do I measure my own face?

Hold a ruler horizontally across the widest part of your cheekbones and read the millimetres. Compare it to the front width, not the lens width: the front width is the number that decides whether a frame fits.