Men's Adrenaline GTS 25 vs Gel Total Support Insoles: which is safer?
Spenco Gel Total Support Insoles is our pick: better on PFAS and on the overall hazard picture.
Brooks
Men's Adrenaline GTS 25
PFAS grade
F 20/100
Overall grade
F 0/100
Verdict
Skip
Hazard flags
⚑ 2
Material
mesh textile upper, foam midsole, rubber outsole with water-repellent coating treatment
Confidence
55%
LikelyPFAS in water-repellent coating
PossiblePolyurethane midsole off-gassing
Our pick
Spenco
Gel Total Support Insoles
PFAS grade
D 65/100
Overall grade
F 57/100
Verdict
Skip
Hazard flags
⚑ 2
Material
Gel cushioning with foam base, materials not fully disclosed
Confidence
62%
PossibleFormaldehyde resins (in foam base bonding)
PossibleMicroplastics shedding from gel degradation
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 athletic insoles & orthotics: see the full ranking