Asics · Waterproof Sports Gear
Asics Men's PR Lyte 5in Running Short
Skip until ASICS discloses water-repellent coating chemistry or certifies PFAS-free.
Running shorts use polyester with water-repellent coating treatment. ASICS does not publicly disclose water-repellent coating chemistry, raising PFAS uncertainty in performance apparel.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Polyester with water-repellent coating finish
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Waterproof / stain-resistant treatment
water-repellent coating treatments have historically used PFAS.
Category baseline
clothing is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
The PR Lyte 5in short is constructed from polyester with a water-repellent coating (water-repellent coating) finish applied to the fabric surface. Polyester itself is a stable synthetic polymer with low toxicity risk during wear. The water-repellent coating is the concern: most athletic brands use fluorinated compounds (PFAS-based) to achieve water and stain resistance, though some have begun switching to fluorine-free alternatives. ASICS has not publicly disclosed which chemistry this short uses.
The brand's record and disclosure
ASICS does not appear to have published a PFAS elimination timeline or committed to fluorine-free water-repellent coating standards as of available records. The company has not voluntarily disclosed water-repellent coating chemistry for its apparel lines. This silence is notable given that competitors like Patagonia and Arc'teryx have made public commitments to PFAS phase-outs. ASICS' lack of transparency on this issue makes risk assessment difficult for consumers seeking low-chemical options.
How it compares in its category
Most mainstream athletic shorts at ASICS' price point use water-repellent coating finishes, so this product is not unusual in that respect. However, brands marketing toward environmentally conscious runners (Patagonia, Allbirds, Xterra) increasingly certify PFAS-free or fluorine-free status, making those alternatives easier to vet. ASICS' silence puts this short in the middle of the disclosure spectrum: better than brands denying the issue exists, but less transparent than leaders. Performance-wise, the short is well-reviewed for fit and durability, with no reports of coating degradation.
If you buy it
Wash in cold water without fabric softener, which can degrade water-repellent coating performance and is unnecessary. Avoid dry cleaning, which may involve additional chemical exposure. Do not tumble dry on high heat; air dry or low heat to preserve coating integrity. If the water beading noticeably decreases after 10-15 washes, the water-repellent coating is degrading normally; replacement is not urgent unless you need water resistance for trail use. Consider hand washing or delicate cycle to extend water-repellent coating life.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
PFAS in water-repellent coating finish (fluorinated water-repellent coating)
ASICS has not disclosed whether this short's water-repellent coating uses legacy PFAS compounds or newer alternatives. Most athletic water-repellent coating finishes in this category still rely on fluorinated chemistry; washing and wear gradually release these compounds into wastewater and the environment.
Azo dyes in polyester
No specific reports of restricted azo dyes in ASICS apparel. Polyester textiles in major brands typically comply with OEKO-TEX or similar standards limiting highly toxic azo colorants, though ASICS does not advertise certification for this product.
Formaldehyde resins in fabric finishing
water-repellent coating finishes and other performance coatings may include formaldehyde-based cross-linkers to improve durability. Off-gassing is minimal during wear but most pronounced during first few washes. No product-specific data available; likely present but at levels typical for athletic apparel.
Antimony in polyester fiber
Antimony trioxide is a common catalyst in polyester production but migrates minimally into worn garments. No evidence of elevated antimony in ASICS products; this hazard is typically confined to manufacturing and fabric scraps.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 45% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Waterproof Sports Gear
Patagonia
Men's 10" Quandary Shorts
nylon/polyester blend with water-repellent coating treatment
Lower concern. Patagonia uses PFC-free water-repellent coating; verify MADE SAFE label on tag.
✓Lab test found no PFAS
Reebok
Men's Athlete Speed Shorts
Polyester mesh and nylon blend, standard athletic construction
Lower concern. Standard athletic shorts without water-resistant coating.
⚠Risky category by default
Patagonia
Men's Home Waters Hybrid Shorts
Polyester blend with PFAS-free water-repellent coating finish
Lower concern. Patagonia phased out PFAS-based water-repellent coating; verify current product line batch.
⚠Waterproof or stain-proof treatment
More waterproof sports gear grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.