Men Mephisto Curt Mt SNEAKER vs Summit Fastpack GORE-TEX Hiking Boot: which is safer?
Men Mephisto Curt Mt SNEAKER is our pick, better on PFAS and on the overall hazard picture.
Our pick
Mephisto
Men Mephisto Curt Mt SNEAKER
PFAS grade
Good 65/100
Overall grade
Good 59/100
Verdict
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Hazard flags
⚑ 1
Material
leather, textile, rubber sole
Confidence
55%
PossibleVolatile organic compounds (VOC) off-gassing from adhesives
The North Face
Summit Fastpack GORE-TEX Hiking Boot
PFAS grade
Bad 20/100
Overall grade
Bad 2/100
Verdict
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Hazard flags
⚑ 3
Material
GORE-TEX membrane (polytetrafluoroethylene-based waterproof layer) + nylon/synthetic upper
Confidence
62%
PossibleAdhesive volatiles and off-gassing
PossibleDye and pigment stability in synthetic textiles
ReportedThermal degradation of GORE-TEX bonding under extreme heat
Where these two actually differ
- We flag Volatile organic compounds (VOC) off-gassing from adhesives on the Mephisto and not on the The North Face.
- We flag Adhesive volatiles and off-gassing, Dye and pigment stability in synthetic textiles and Thermal degradation of GORE-TEX bonding under extreme heat on the The North Face and not on the Mephisto.
- The Mephisto is leather, textile, rubber sole where the The North Face is GORE-TEX membrane (polytetrafluoroethylene-based waterproof layer) + nylon/synthetic upper, which is most of the difference in these two grades.
- The gap is 45 points, wide enough that this is not a close call, and the Mephisto is the one to buy.
Both products run through the same public rubric, which covers 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 waterproof boots, see the full ranking