Fit guide

Find the pair for you

Three numbers and a mirror are all it takes. Start with your size, check what suits your face shape, or match a pair you already own — every frame here links straight to it.

The Harbor · 52 □ 20 – 145

01 Size guide

Read the numbers

Every frame has three numbers printed inside the arm: lens width, bridge width and temple length, in millimetres. Each Tide frame lists them on its product page.

5220145

Shown: The Harbor

  • The width of one lens at its widest. The biggest single factor in how large a frame looks on you.

  • The gap between the lenses, where the frame rests on your nose. A narrower bridge sits closer to the face; a wider one sits higher and further off it.

  • Hinge to tip of the arm. Most adults wear 140–150 mm; a longer arm holds more securely behind the ear.

Which width are you?

Look at the lens width on a pair that already fits, or hold a ruler across your face from temple to temple. The front of the frame should be about as wide as your face: no gap at the sides, and the arms shouldn't bow out.

Most faces land here. The middle of the range, where nearly every shape sits comfortably.

Every frame, side by side

Frame Shape Lens width Bridge width Temple length Fits
The Harbor Rectangular 52 mm 20 mm 145 mm Medium – Wide
The Vista Square 52 mm 17 mm 145 mm Medium – Wide
The Offshore Geometric 50 mm 22 mm 145 mm Medium
The Corsair Square 55 mm 18 mm 150 mm Wide
The Meridian Round 48 mm 22 mm 145 mm Narrow
The Riviera Round 49 mm 21 mm 145 mm Narrow – Medium

02 Face shape

Frames by face shape

Pull your hair back, face a mirror and compare the width of your forehead, cheekbones and jaw, then your length against your width. The rule that holds: choose a frame that contrasts with your face, not one that repeats it.

Not sure of your face shape? Take the quiz

Oval

Balanced proportions, a little longer than wide, with a gently rounded jaw and the cheekbones as the widest point.

Look for

Almost anything works. Keep the frame about as wide as the widest part of your face, with the top of the frame near your brow line.

Go easy on

Frames much wider than your face, which throw the balance off.

Try

03 Match your pair

Already own a pair that fits?

Look inside the left arm for three numbers, like 52 □ 20 – 145. Set them below and every Tide frame lines up by how close it comes.

52 mm
20 mm
145 mm

  1. The Harbor 52 □ 20 – 145RectangularShop
  2. The Vista 52 □ 17 – 145SquareShop
  3. The Offshore 50 □ 22 – 145GeometricShop
  4. The Corsair 55 □ 18 – 150SquareShop
  5. The Meridian 48 □ 22 – 145RoundShop
  6. The Riviera 49 □ 21 – 145RoundShop
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