lululemon Mile Maker Mesh Short-Sleeve Shirt For All Runners - Size M - True Navy

water-repellent coating chemical composition (unspecified)

The water repellent finish on this mesh is not publicly disclosed by Lululemon. While modern water-repellent coating coatings often use PFOA alternatives, the lack of transparency leaves the specific chemistry unknown; skin contact during wear and washing are low-exposure routes, but cumulative exposure over the garment lifecycle is unquantified.

Azo dyes in polyester

No specific azo dye restrictions or reports are on record for Lululemon apparel. Polyester yarn can carry banned azo dyes in some manufacturing contexts, but the brand's scale and market position suggest compliance with major retail standards. No independent testing data is publicly available for this specific product.

Antimony catalyst in polyester fiber

Polyester is typically synthesized with antimony trioxide as a catalyst; residual antimony can remain in the finished fiber at trace levels. For a moisture-wicking mesh with frequent skin contact and perspiration, the risk is low but not zero; antimony leaching into sweat has not been established as a health concern in athletic wear, but the compound is classified as a possible carcinogen at high

Formaldehyde or formaldehyde releasers in finish treatment

Lululemon does not disclose whether wrinkle-resistant or antimicrobial finishes are applied post-manufacture. Most performance mesh avoids formaldehyde resins, but fabric softness treatments occasionally contain releasers. No public reports link Lululemon products to formaldehyde off-gassing.

Microplastic shedding from mesh degradation

Polyester mesh sheds microfibers with repeated washing and wear, particularly when the water-repellent coating degrades and the mesh integrity is compromised. For a high-wear running garment, fiber shedding is inevitable; this is an environmental hazard rather than a direct health risk, but relevant to informed consumption.