Longchamp LO737S Brown Acetate Sunglasses: A Squared Cat-Eye Frame, Explained
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Sunglasses are one of the few accessories people wear almost every day, so the frame shape matters more than any single trend. The Longchamp LO737S is a brown acetate pair built around a squared cat-eye silhouette. It is listed at $110.38 in our catalog snapshot; please confirm the current price on the seller page, because prices and stock can change.
What the listing says
The seller's catalog description is short, so here is what it actually states:
- Frame material: acetate, in brown.
- Shape: a squared cat-eye silhouette, described as a modern geometric frame shape.
- Lenses: tinted. The listing does not state a UV rating, lens material or whether the lenses are polarized.
- Details: metal accents on the temples and a decorative charm on the bridge.
The product photo file name also mentions "Mauve", which may refer to the lens tint, but the listing text itself only says "tinted", so treat that as something to confirm.
Who it might suit
A squared cat-eye is a middle ground between a sharp, upswept cat-eye and a plain square frame. That can make it an easy pick for someone who wants a little lift at the outer corners without a dramatic retro look. Brown acetate tends to sit softer against the face than black, so it may appeal to people who mostly wear warm neutrals, camel coats, denim or knitwear. The bridge charm and metal temple accents add a small decorative touch, which suits people who like accessories that read as finished rather than purely sporty.
What to check before you buy
- UV protection: the listing does not mention it. Check the seller page or the product tag for a UV400 or equivalent statement before relying on these for strong sun.
- Size: no lens width, bridge width or temple length is given in our snapshot. If you know the measurements of a pair that fits you, compare them on the seller page.
- Lens colour: confirm the exact tint, since tinted lenses can range from light to dark.
- Returns and authenticity: it is sold through a multi-brand retailer, so read its return window and any authenticity notes.

An everyday example
Picture a bright late-autumn afternoon: low sun, long shadows, and a walk between two cafes. This is the kind of light where many people reach for sunglasses even when it is cool outside. A brown frame like this one would sit naturally with a beige knit or a camel coat, and the squared cat-eye shape keeps the look polished for a casual coffee stop. This is only an illustrative scenario, not a review; we have not worn or tested these sunglasses.
Our take
The LO737S looks like a considered everyday frame: brown acetate, a softened cat-eye shape and a couple of small decorative details. The listing is light on technical facts, especially UV protection and sizing, so those are the two things to verify before ordering. If those check out and the shape suits your face, it could be a versatile pair for daily wear.
View Longchamp LO737S sunglasses at the seller
Information is based on the seller's catalog listing as collected by KPOPORO. Details can change; please confirm on the seller page before buying.