TX5 GTX Men's vs Men's St. Elias Waterproof Hiking Boots Brown 7.5: which is safer?
La Sportiva TX5 GTX Men's is our pick: better on PFAS and on the overall hazard picture.
Our pick
La Sportiva
TX5 GTX Men's
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleAzo dyes
PossibleFormaldehyde-releasing resins in finishing
PossibleAntimony in polyester
Vasque
Men's St. Elias Waterproof Hiking Boots Brown 7.5
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleAzo dyes in leather and synthetics
PossibleFormaldehyde in leather tanning or synthetic adhesives
PossibleCoating degradation and microplastic/particulate shedding
Where these two actually differ
- We flag Azo dyes, Formaldehyde-releasing resins in finishing and Antimony in polyester on the La Sportiva and not on the Vasque.
- We flag Azo dyes in leather and synthetics, Formaldehyde in leather tanning or synthetic adhesives, Coating degradation and microplastic/particulate shedding and Heavy metals in tanning or leather finishing on the Vasque and not on the La Sportiva.
- The La Sportiva is synthetic textile with Gore-Tex membrane waterproof layer where the Vasque is Leather/synthetic upper with waterproof membrane coating, which is most of the difference in these two grades.
- These two are level, close enough that price and fit should decide it rather than our grade.
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