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See what clothing is made of and spot plastic fabrics while you shop. Shows fiber content on product pages; saves favorites. See what clothing is made of and spot plastic fabrics while you shop. How It Works On a clothing product page, click the FiberScore icon. FiberScore finds the fiber content the brand lists, for example "95% Organic Cotton, 5% Elastane", and shows it in one place, largest share first. - Spot synthetic fabrics: When a synthetic fiber is listed, FiberScore says so ("Includes 5% Elastane"). On many stores, when the fibers total 100% and the product's description names no synthetic fiber, it says "No synthetic fabrics on the label." - Learn about each fiber: Hover over a fiber to see what it is and how it's made. - Fill in the gaps: If a page is missing something or FiberScore gets it wrong, you can add or correct the fibers yourself. - Save Favorites: Keep up to 20 items on your device to compare later. - See it without clicking (optional): Turn on "Show fiber content on product pages" to get a small fiber-content badge on product pages. It's off by default and asks for site access only when you turn it on. Private by Design FiberScore reads a page only when you click its icon, or when the optional badge is on. Everything is worked out on your device, and nothing is sent to FiberScore. No account is needed. Why FiberScore Exists FiberScore was created by a materials scientist and engineer who has worked in the polymer and textile industries. Checking what clothing was made of took more time than it should have, and fiber content had a strong impact on whether a piece of clothing was a good fit for them, so it seemed like information that should be easy to find. Good to Know FiberScore shows the fiber content brands publish; it is not lab testing. Labels often leave out trims and most linings, so those aren't covered. To shop clothing by fiber content across many brands, visit https://www.fiberscore.co
Nov 7, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.