DECKED Sixer 16 D-co Case vs Humangear Stax: which is safer?

Humangear Stax is our pick: better on PFAS and on the overall hazard picture.

REI

DECKED Sixer 16 D-co Case

PFAS grade

B 85/100

Overall grade

D 69/100

Verdict

Buy

Hazard flags

⚑ 4

Material

Plastic case (DECKED cooler construction)

Confidence

55%

PossibleVolatile organic compound (VOC) off-gassing

PossibleMicroplastic generation from wear

PossibleBacterial or mold growth in crevices

Why this gradeBuy

Our pick

REI

Humangear Stax

PFAS grade

A 100/100

Overall grade

B 84/100

Verdict

Buy

Hazard flags

⚑ 4

Material

polypropylene plastic

Confidence

72%

PossibleMicroplastic release from mechanical wear

PossibleThermal degradation and chemical leaching at elevated temperatures

PossibleMold and bacterial growth in crevices

Why this gradeBuy

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 outdoor gear storage: see the full ranking