Women's Hoka Kaha 3 GTX vs Men's Killington Trekker Sneaker Boots: which is safer?
These two grade almost identically. Pick on price and preference; neither has a PFAS edge.
HOKA
Women's Hoka Kaha 3 GTX
PFAS grade
F 20/100
Overall grade
F 16/100
Verdict
Skip
Hazard flags
⚑ 1
Material
Gore-Tex GTX waterproof membrane with textile upper
Confidence
45%
PossibleTeflon-type coating/Teflon-family coating (from Gore-Tex membrane)
Timberland
Men's Killington Trekker Sneaker Boots
PFAS grade
F 20/100
Overall grade
analysis pending
Verdict
pending
Hazard flags
none flagged
Material
Leather, nubuck, rubber sole with waterproof treatment
Confidence
45%
Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More hiking shoes & trail runners: see the full ranking