Darn Tough · Waterproof Hiking Socks
Darn Tough Men's Spaced Out Micro Crew Lightweight Hiking Socks
Lower PFAS concern for untreated wool socks. Verify with brand if water-resistance treatment was applied.
Darn Tough's Spaced Out socks are primarily merino wool and nylon, base materials with lower inherent PFAS risk. The brand doesn't publicly claim PFAS-free status or disclose water-repellent coating treatment details.
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Material
Merino wool blend, nylon, spandex
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Darn Tough has made none
Formulations change between production runs, so check the current label. How we grade.
More waterproof hiking socks 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.