Columbia · Hiking Shoes & Trail Runners
Columbia Men's Transverse Hike Waterproof Hiking Boots
Waterproof hiking boots; PFAS risk unclear without disclosure.
Columbia does not publicly disclose PFAS use in this waterproof boot line. Waterproof treatments commonly use PFAS, but specifics are unavailable from brand statements or testing data.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Synthetic leather/textile upper with waterproof coating
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
These boots use a synthetic leather upper (likely polyurethane or PVC) combined with textile backing and an applied waterproof coating. The coating's chemistry is not disclosed by Columbia and represents the primary unknown: common waterproofing on hiking boots historically relied on PFAS-based durable water repellents (water-repellent coating), though some manufacturers have shifted to PFAS-free alternatives. The synthetic upper itself is less prone to heavy metal contamination than traditional leather or ceramic coatings, but the coating system remains the critical variable.
The brand's record and disclosure
Columbia does not publicly disclose the specific water-repellent coating chemistry used in this product line or state whether it contains PFAS. The company has not issued comprehensive guidance on PFAS elimination across footwear, and no major recalls or confirmed hazard reports are on public record for this boot model. This silence is notable given that outdoor apparel competitors (Arc'teryx, Patagonia) have begun PFAS-free commitments; Columbia's lack of transparency suggests either legacy formulations remain in use or the company has not prioritized public communication on this issue.
How it compares in its category
Waterproof hiking boots universally require water-repellent treatments; this product falls into a mainstream price and performance tier where PFAS-based water-repellent coating remains common industry practice. Comparable alternatives from Merrell, Salomon, and The North Face face identical disclosure gaps. Brands explicitly marketing PFAS-free waterproofing (e.g., some Keen or REI Co-op models) exist but command premium pricing; this Columbia boot offers no such differentiation or reassurance.
If you buy it
Waterproof coatings degrade with use and repeated washing; reapply water-repellent coating treatment annually or when water no longer beads on the upper. Avoid machine washing and high-heat drying, which can delaminate the coating and accelerate wear. Store in a cool, dry place to prevent mold and odor, which are common in synthetic-uppered boots and require ventilation, not chemical remedies. If you require certainty on PFAS exposure, contact Columbia directly or consider brands with explicit PFAS-free claims.
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.”
Waterproof coating chemistry (unknown water-repellent coating agent)
Standard industry practice for hiking boots historically incorporates PFAS-based water-repellent coating; Columbia does not disclose which chemistry is used in the Transverse line, making PFAS presence unconfirmed but plausible given lack of public commitment to alternatives.
Formaldehyde in synthetic textile adhesives and finishes
No specific reports of formaldehyde contamination in Columbia hiking boots. Synthetic uppers and textile backing may contain trace residues from manufacturing resins or pre-treatments, but this is not a reported concern for this product category at consumer exposure levels.
Azo dyes in colored uppers and linings
No established reports of restricted azo dyes in Columbia footwear. The synthetic leather upper and fabric components are subject to standard industry dye regulations in target markets (EU, North America), though full dye palette composition is not publicly disclosed.
Antimony in polyester textile components
No known reports of antimony contamination in Columbia hiking boots. If polyester mesh or lining is used, antimony catalysts may be present in trace amounts, but direct skin contact risk is minimal and no consumer incidents are documented.
Adhesive and glue off-gassing (VOC)
Synthetic uppers bonded to rubber soles and internal cushioning require industrial adhesives; temporary volatile organic compound (VOC) emissions from fresh boots are common across the category and typically dissipate within days to weeks with normal ventilation.
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.
More hiking shoes & trail runners 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.