Air Max SNDR Nike Women's vs Men's SFB Air Field Ukiah R GTX: which is safer?

Nike Men's SFB Air Field Ukiah R GTX is our pick: better on PFAS and on the overall hazard picture.

Nike

Air Max SNDR Nike Women's

PFAS grade

F 20/100

Overall grade

F 2/100

Verdict

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Hazard flags

⚑ 3

Material

synthetic textile upper, foam/rubber sole with water-repellent coating finish

Confidence

45%

PossiblePFAS in water-repellent coating finish (water-repellent coating)

PossibleFormaldehyde resins in adhesives and finishes

ReportedMicroplastic shedding from sole and upper wear

Why this grade

Our pick

Nike

Men's SFB Air Field Ukiah R GTX

PFAS grade

F 20/100

Overall grade

F 12/100

Verdict

Skip

Hazard flags

⚑ 2

Material

Textile upper with GTX waterproof membrane

Confidence

45%

PossibleFluorochemicals in GTX waterproof membrane

PossibleCoating degradation releasing particles

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 hiking shoes & trail runners: see the full ranking