Men's Eclipse GTX Hiking Boots vs TX5 GTX Men's: which is safer?

La Sportiva TX5 GTX Men's is our pick: better on PFAS and on the overall hazard picture.

La Sportiva

Men's Eclipse GTX Hiking Boots

PFAS grade

F 20/100

Overall grade

F 0/100

Verdict

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Hazard flags

⚑ 4

Material

Nubuck leather upper, Gore-Tex lining, synthetic sole

Confidence

55%

PossibleLeather tanning chemicals and finishes

LikelyTeflon-type coating/Teflon-family coating off-gassing (Gore-Tex membrane)

PossibleAdhesive and laminate off-gassing (upper-lining bond)

Why this grade

Our pick

La Sportiva

TX5 GTX Men's

PFAS grade

F 20/100

Overall grade

F 8/100

Verdict

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Hazard flags

⚑ 3

Material

synthetic textile with Gore-Tex membrane waterproof layer

Confidence

45%

PossibleAzo dyes

PossibleFormaldehyde-releasing resins in finishing

PossibleAntimony in polyester

Why this 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