A keyhole bridge sits across the top of the nose instead of pressing on the sides — the shape preferred by anyone with a higher or wider nose bridge. Woolet builds both standard frames around it: the round <strong>007</strong> with a 26 mm keyhole, and the soft-square <strong>009</strong> with a 25 mm keyhole, both at 158 mm front width in hand made in EU from Italian acetate.
too narrow for a wider nose
25-26 mm, built for wider noses
Woolet 007 — Round / Panto
Round Italian acetate frame, 158 mm wide with a 26 mm bridge. Bespoke from 145 to 160 mm.
$190View →
Woolet 009 — Soft Square
Soft-square Italian acetate frame, 158 mm wide with a 25 mm bridge. Bespoke from 145 to 160 mm.
Most mainstream brands default to a saddle bridge — a continuous curve that rests on the sides of the nose. It works fine on average noses, but on wider or higher bridges it slides, pinches, and leaves marks. A keyhole bridge solves this by lifting the contact area to the top of the nose ridge, distributing weight on bone rather than cartilage.
Bridge width matters as much as bridge shape. The 26 mm bridge on the round 007 and 25 mm bridge on the soft-square 009 sit 2–4 mm wider than the 17–19 mm typical of mainstream keyhole frames. That extra room is what stops the slide on wider noses without forcing you to overtighten the temples.
Both frames are cut from Italian Mazzucchelli cellulose acetate — the same block material used by Persol and Tom Ford — and Hand Finished in the EU. 5-barrel PVD Gunmetal hinges, 150 mm temples at 11°. Acetate doesn't transfer cold or warm temperature the way metal does, so there's no slide in summer or pressure in winter.
Pricing: $114 founding-member pre-order, $190 at full launch. The AI Fit Wizard measures both bridge width and nose height from a single photo, so we can confirm 25 mm or 26 mm fits before you order. Bespoke covers keyhole bridges from 20 to 24 mm in 1 mm increments.
Saddle bridge: a continuous curve that rests on the sides of the nose. Works well for average and lower nose bridges, distributes weight evenly across cartilage. Almost every mainstream wide-frame uses one.
Keyhole bridge: cut with a small inverted-keyhole opening that lifts the frame onto the top of the nose. Works better for higher or wider nose bridges — the frame rides on bone, doesn't slide, and won't leave deep red marks after a long day. Historically the bridge style of choice for 1950s and 1960s American eyewear (Wayfarer, Persol 649), still the default in heritage and vintage-inspired frames today.
Three quick signs you want a keyhole bridge: your current glasses leave marks on the sides of your nose (not the top), they slide down within an hour, or they sit too high and you keep looking through the top of the lens. Any of those means a saddle bridge is wrong for your nose.
Most heritage keyhole frames — from Persol, Moscot, Oliver Peoples — use 18 to 20 mm bridges. That's standard because their front widths are 48 to 52 mm, sized for average faces. Woolet's front width is 158 mm, sized for faces 155 mm and above, and wider faces typically come with wider noses. The 26 mm bridge on the 007 and 25 mm on the 009 scale with the rest of the frame.
If you've tried vintage Persol 649s or Moscot Lemtosh and the frame slides or the bridge pinches, the keyhole shape is right but the width is wrong. Woolet's 25–26 mm or a bespoke 23–26 mm bridge is the next step up.
Deeper reading: the Nose-Bridge Fit hub covers what bridge numbers mean, keyhole vs saddle, and how to measure your own bridge at home.
Both shapes ship at 158 mm wide with a 25–26 mm bridge, engineered for faces in the 153-163 mm range. Outside that, bespoke covers 145 to 160 mm with a 20–26 mm bridge. Use our AI Fit Wizard to confirm the right fit for your face.
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What is a keyhole bridge on glasses?
A bridge cut with a small inverted-keyhole opening so the frame sits across the top of the nose rather than on the sides. It distributes weight on bone instead of cartilage, which prevents the frame from sliding or leaving deep marks. Common in heritage and vintage-inspired American eyewear since the 1950s.
Keyhole bridge vs saddle bridge — which is better?
Neither is universally better — it depends on your nose. Saddle bridges work well for average and lower nose bridges. Keyhole bridges work better for higher or wider bridges, and for anyone whose glasses currently slide or leave marks on the sides of the nose.
Are Woolet 007 and 009 both keyhole?
Yes. Both standard frames use a keyhole bridge — 26 mm on the round 007 and 25 mm on the soft-square 009. Bespoke covers keyhole bridges from 20 to 24 mm.
How wide is a typical keyhole bridge?
Mainstream heritage keyhole frames use 18 to 20 mm bridges. Woolet uses 26 mm (007) and 25 mm (009) as standard because the frame is built for wider faces (155 mm+), which usually come with wider noses.
Will a keyhole bridge fit a wide nose?
Yes — that's specifically what it's designed for. The keyhole opening lets the frame sit on the bone at the top of the nose, which works better for wider and higher nose bridges than a saddle bridge that wraps the sides.
Can I order a custom keyhole bridge width?
Yes. Bespoke covers keyhole bridges from 20 to 24 mm in 1 mm increments, paired with any front width from 145 to 160 mm. Hand made in EU, ships 6–8 weeks after the standard pre-order batch.
How is this different from saddle bridge glasses for vintage styles?
Saddle bridge glasses sit on the sides of the nose with a continuous curve — clean look for round and panto vintage shapes, but slides on wider noses. Keyhole gives the same heritage silhouette while solving the fit problem. The round 007 in particular is built as a vintage-round shape on a keyhole, not a saddle.
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