15 Wool Waterproof Hiking Socks graded for PFAS risk
All 15 wool-based options in our waterproof hiking socks database, graded Bad to Excellent and ranked lowest risk first. None earn a buy-worthy grade yet, so start from the top and check the swap suggestions.
Why Darn Tough Men's Hiker Encounter 2-Pack grades highest here, and why that is not a pass
Every grade on this page is one sum. A category starts from a baseline, each disclosed material or coating adds risk points, and each thing the brand or a third party has published takes them away. Below is that sum for the winner, then for 1 product it beats, so you can see exactly where the 45 points between the top and the bottom of this wool waterproof hiking socks ranking come from. Nothing in this category reaches our 70 point pass mark, so this is the shape of the field rather than a recommendation.
Top graded, and still below our pass mark
Made of Merino wool blend, no water-repellent treatment applied.
- +30Category baseline. The starting point for this type of product, before anything specific to this product is counted.
- +15No PFAS disclosure. No public statement from the brand about PFAS in this product.
- -10Base material not linked to PFAS. The main material recorded for this product is not one associated with PFAS.
35risk points in total, which is a grade of 65
What the grade does not fix. It still carries one risk factor, No PFAS disclosure, and our graders recorded 2 other hazards on it. See the full breakdown.
What it still grades above, and why
What puts it behind. Waterproof / stain-resistant treatment, +35 points. Water-repellent coating treatments have historically used PFAS. The top-graded product carries no such factor.
Made of Merino wool blend with water-repellent coating (water-repellent coating) finish.
- +35Waterproof / stain-resistant treatment
- +30Category baseline
- +15No PFAS disclosure
80risk points, a grade of 20
No product on this page was physically tested by us. Every number above comes from published materials, ingredient and coating disclosures, certifications and brand statements, scored on one public rubric. Formulations change without notice, so check the current product listing before buying.
All 15 wool waterproof hiking socks, best graded first
- Merino wool blend, no water-repellent treatment applied
- We found no PFAS statement from the brand
- Antimony in synthetic fibers (nylon reinforcement)
2 hazards checked on this product, all on its full breakdown.
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- Merino/premium wool blend, no water-resistant coating mentioned
- We found no PFAS statement from the brand
- Azo dyes (synthetic reinforcement and color)
3 hazards checked on this product, all on its full breakdown.
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- Merino wool blend (primary fiber); no reported water-repellent coating (water-repellent coating) or stain…
- We found no PFAS statement from the brand
- Formaldehyde / VOCs
2 hazards checked on this product, all on its full breakdown.
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- Merino wool blend, acrylic, polyamide
- We found no PFAS statement from the brand
- Microfiber shedding from synthetics
2 hazards checked on this product, all on its full breakdown.
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- Merino wool blend, nylon, spandex
- We found no PFAS statement from the brand
- Azo dyes in nylon/spandex
4 hazards checked on this product, all on its full breakdown.
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- merino wool blend, nylon
- We found no PFAS statement from the brand
- Allergen fragrance or dyes migrating to skin
2 hazards checked on this product, all on its full breakdown.
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- merino wool blend, synthetic fibers
- We found no PFAS statement from the brand
- Azo dyes in synthetic fibers
4 hazards checked on this product, all on its full breakdown.
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- Merino wool blend, no known water-repellent coating treatment disclosed
- We found no PFAS statement from the brand
- Undisclosed water-repellent coating treatment chemistry
2 hazards checked on this product, all on its full breakdown.
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- Merino wool blend (merino wool, nylon, elastane)
- We found no PFAS statement from the brand
- Azo dyes and colorant allergens
3 hazards checked on this product, all on its full breakdown.
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- Merino wool blend (primary natural fiber)
- We found no PFAS statement from the brand
- Synthetic dyes and colorants
3 hazards checked on this product, all on its full breakdown.
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- Merino wool blend / synthetic fibers (polyester, nylon)
- Formaldehyde / VOCs
3 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon- Merino wool blend with water-repellent coating (water-repellent coating) finish
- We found no PFAS statement from the brand
- Formaldehyde / VOCs
4 hazards checked on this product, all on its full breakdown.
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- Wool blend with water-repellent coating finish
- We found no PFAS statement from the brand
- water-repellent coating degradation and leachables
- Merino wool/synthetic blend with water-repellent coating treatment
- We found no PFAS statement from the brand
- water-repellent coating chemistry (fluorinated or non-fluorinated, unspecified)
2 hazards checked on this product, all on its full breakdown.
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- merino wool blend with water-repellent coating treatment (likely fluorocarbon-based)
- We found no PFAS statement from the brand
- PFAS
2 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonEvery material, ranked together, is in the full waterproof hiking socks ranking →