Weft

Your clothes touch your skin all day — what they're made of matters.

Weft shows the fabric composition (for example, "100% Cotton" or "95% Polyester, 5% Elastane") right underneath each product on supported clothing sites — so you can spot breathable, natural-fiber pieces at a glance, without clicking into every product page.

WHY FABRIC MATTERS
• Natural fibers like cotton, wool, and linen breathe, wick moisture, and tend to be gentler on sensitive skin.
• Synthetic-heavy fabrics like polyester, nylon, and acrylic trap heat and sweat, can hold onto odor, and shed microplastics in the wash.
• If you have sensitive skin, run hot, or simply prefer natural materials, fabric content is the one detail that's hardest to find — usually buried at the bottom of the product page.

Weft puts it front and center. Every item gets a quick badge, plus a simple signal: a green check for cotton-rich pieces and a red mark for synthetic-heavy ones — so you can shop for what's closest to your skin in seconds.

HOW IT WORKS
When you visit a supported listing page, Weft reads the fabric composition from each product's detail page and displays it as a small label below the product title. Results are cached locally on your device for up to 30 days, so repeat visits are instant and retailer servers aren't hit unnecessarily.

YOUR PRIVACY — WHAT WEFT DOES NOT DO
• No data is sent off your device. Nothing is uploaded, shared, or sold.
• No analytics, no tracking, no telemetry.
• No remote code — all logic ships inside the extension package.
• No accounts, no logins, no required settings.

The optional toolbar popup is read-only and shows on-device counters (cache hits, successful fetches, rate-limit events). It has no controls and makes no network requests.

PERMISSIONS
• Storage — to cache fabric composition strings locally on your device.
• Access to the supported retailer sites (underarmour.com/.ca, adidas.com/.ca, nike.com) —required to read product detail pages so the composition can be extracted.

Weft is not affiliated with, endorsed by, or sponsored by Under Armour, adidas, Nike, or any retailer mentioned. All trademarks belong to their respective owners.