Women's Stynger GTX 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.
Asolo
Women's Stynger GTX
PFAS grade
Bad 20/100
Overall grade
Bad 8/100
Verdict
Skip
Hazard flags
⚑ 3
Material
Nylon/polyester fabric with Gore-Tex membrane, water-repellent coating treatment unspecified
Confidence
42%
PossibleAzo dyes in polyester/nylon
PossibleAntimony in polyester
PossibleVOC and off-gassing from synthetic adhesives and Gore-Tex
Our pick
Mephisto
Men Mephisto Curt Mt SNEAKER
PFAS grade
Good 65/100
Overall grade
Good 59/100
Verdict
Skip
Hazard flags
⚑ 1
Material
leather, textile, rubber sole
Confidence
55%
PossibleVolatile organic compounds (VOC) off-gassing from adhesives
Where these two actually differ
- We flag Azo dyes in polyester/nylon, Antimony in polyester and VOC and off-gassing from synthetic adhesives and Gore-Tex on the Asolo and not on the Mephisto.
- We flag Volatile organic compounds (VOC) off-gassing from adhesives on the Mephisto and not on the Asolo.
- The Asolo is Nylon/polyester fabric with Gore-Tex membrane, DWR treatment unspecified 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