Data Scope, Sources and Freshness
This site is a read-only catalog of sunglasses specifications for the US market. Sizes are in millimeters. Every published value links to the source that states it.
What is covered
The current data covers selected models from Ray-Ban, Oakley and Maui Jim. Most are paired with their low-bridge or alternative-fit versions, for example Oakley Sylas OO9448 and Sylas (Low Bridge Fit) OO9448F (Oakley). The catalog isn't a full listing of any brand. A frame that isn't listed might still exist.
Field status
Every field has a status:
| Status | Meaning |
|---|---|
manufacturer_reported |
Stated by the brand on its own page for this variant; not measured here |
merchant_reported |
Stated by a retailer page; not measured here |
measured |
Measured by this site with a documented method (no record uses this yet) |
conflicting |
Sources disagree; the value is null and both claims are shown |
unknown |
No published source states it for this exact variant; null |
withheld |
In review and not yet cleared; the raw value is not disclosed |
synthetic |
Demo fixture value; never used in production data |
Source types
Most sources are maker product pages, such as Oakley's US site and its Standard Issue site, which gives the measurements (Oakley Standard Issue). Maker guides supply fit-label definitions (Maui Jim). Retailer pages are used rarely. When a retailer value cannot be tied to the exact maker variant, it is kept in review and withheld: for example, a retailer temple length for one Ray-Ban RB2140F variant is not published because the colour-code match to the maker page could not be confirmed.
retrieved_at vs checked_at
retrieved_atis on a source: when that page was fetched.checked_atis on a variant: when its values were last successfully verified.
Freshness is judged per record from checked_at.
Freshness
Specs are re-checked by hand against maker pages. The target is monthly, and there is no automated crawler. A record older than 30 days is marked stale, and a size or lens condition it would pass is reported as stale instead of pass, so it cannot count as a match until it is re-checked; and a record with no check time is unknown. When a response contains several records, its as_of is the oldest check time among them. Each record's checked_at is the authoritative time. Freshness is a policy for how old data may be. A fresh record is not guaranteed to be correct.
No offers yet
No merchant or affiliate price feed is connected. The catalog has no prices or availability, and offer tools return NO_OFFER_COVERAGE.
Corrections
If a value is wrong or out of date, report the variant, the field and a source URL that states the correct value. The methodology page explains how sources are reviewed.