Men's Eclipse GTX Hiking Boots vs Men Mephisto Curt Mt SNEAKER: which is safer?
Men Mephisto Curt Mt SNEAKER is our pick: better on PFAS and on the overall hazard picture.
La Sportiva
Men's Eclipse GTX Hiking Boots
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleLeather tanning chemicals and finishes
LikelyTeflon-type coating/Teflon-family coating off-gassing (Gore-Tex membrane)
PossibleAdhesive and laminate off-gassing (upper-lining bond)
Our pick
Mephisto
Men Mephisto Curt Mt SNEAKER
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleVolatile organic compounds (VOC) off-gassing from adhesives
Where these two actually differ
- We flag Leather tanning chemicals and finishes, PTFE/Fluoropolymer off-gassing (Gore-Tex membrane), Adhesive and laminate off-gassing (upper-lining bond) and Synthetic sole degradation and microplastic shedding on the La Sportiva and not on the Mephisto.
- We flag Volatile organic compounds (VOC) off-gassing from adhesives on the Mephisto and not on the La Sportiva.
- The La Sportiva is Nubuck leather upper, Gore-Tex lining, synthetic sole where the Mephisto is leather, textile, rubber sole, 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: 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