Men's Eclipse GTX Hiking Boots vs Men's Moab 3 Mid Waterproof: which is safer?

Merrell Men's Moab 3 Mid Waterproof 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

Skip

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

Merrell

Men's Moab 3 Mid Waterproof

PFAS grade

F 20/100

Overall grade

F 16/100

Verdict

Skip

Hazard flags

⚑ 1

Material

Leather upper, synthetic lining, water-repellent coating-treated waterproof membrane

Confidence

45%

Possiblewater-repellent coating chemistry (PFAS or alternative)

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