Patagonia · Waterproof Sports Gear
Patagonia Men's Trailfarer Shorts
Lower PFAS concern; Patagonia uses safer water-repellent coating alternatives.
Patagonia has transitioned most apparel to PFOA-free, non-fluorinated water repellents. Trailfarer shorts use synthetic blend with updated water-repellent coating, reducing legacy PFAS risk versus older formulations.
Brand says: “Patagonia has committed to phasing out PFCs (PFAS) and moved to PFOA-free water repellent treatments in most apparel lines.”
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Material
nylon and polyester blend with water-repellent coating treatment
Brand disclosure
Brand claims PFAS-free
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.
Brand-stated PFAS-free
The brand states the product is PFAS-free (self-declared).
The full breakdown
What it's made of and why it matters
These shorts are a nylon and polyester blend, both synthetic polymers chosen for durability, quick-dry performance, and stretch. The water-repellent coating (water-repellent coating) coating applied to the fabric is the critical component: Patagonia has committed to phasing out legacy PFAS-based water-repellent coating in favor of fluorine-free or lower-PFAS alternatives. The blend itself poses minimal chemical leaching risk under normal wear, though polyester can shed microfibers during washing.
The brand's record and disclosure
Patagonia has publicly committed to eliminating PFAS from its product lines and publishes detailed sustainability reports on chemical management. The company has faced scrutiny on water-repellent coating treatment in the past but has been transparent about reformulation timelines. Third-party certifications like Bluesign approval on some lines indicate chemical process oversight, though individual product certifications are not always published for every SKU.
How it compares in its category
Outdoor shorts in this price range typically use either Teflon-type coating-based water repellents or legacy PFAS-heavy water-repellent coating coatings. Patagonia's shift toward fluorine-free water-repellent coating puts these shorts ahead of commodity alternatives from fast-fashion brands. However, performance durability of newer water-repellent coating formulations is still being proven long-term; traditional PFAS alternatives have decades of field data.
If you buy it
Wash inside-out in cool water with gentle detergent to minimize microfiber shedding and preserve the water-repellent coating. Avoid fabric softeners and dryer heat, which degrade coatings; air-dry when possible. The water-repellent coating will diminish over repeated washing; reapplication with fluorine-free products (or manufacturer-approved treatments) extends durability. Replace when seams show stress or stretch loss, typically 2-3 years of regular use.
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.”
Azo dyes and formaldehyde resins in textile finish
No recalls or known issues reported for Patagonia's standard apparel lines; the brand uses restricted dye suppliers and Bluesign-certified finishing. Formaldehyde resins in durable finishes are present but at levels within industry and regulatory norms for outdoor wear.
Polyester microfiber shedding during laundering
All polyester garments shed microfibers; the nylon blend may reduce this slightly compared to 100% polyester shorts. Shedding rate depends on fabric construction and wash intensity. This is not a safety hazard to the wearer but an environmental concern.
water-repellent coating degradation and reapplication products
As the original water-repellent coating wears, some users apply aftermarket water repellent treatments; quality and composition of these products varies widely. Patagonia-recommended treatments are vested in safer alternatives, but third-party products may introduce hazardous chemicals if not chosen carefully.
Antimony in polyester fiber
Antimony is used as a catalyst in some polyester production but remains encased in the polymer; skin migration is not documented in finished garment studies. No established risk from wearing antimony-containing polyester textiles.
Elastic and fastener contaminants (nickel, lead in dyes)
Patagonia sources components to restricted substance lists; no recalls for nickel or heavy metal contamination in elastic waistbands or zipper hardware. This remains a lower-risk area for this brand's quality standard.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% 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.
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.