Elevation 20 Tumbler vs Rambler 26 oz Bottle Straw Cap: which is safer?

OtterBox Elevation 20 Tumbler is the clear pick. YETI Rambler 26 oz Bottle Straw Cap carries a failing PFAS grade, and we never recommend buying a failing product.

Our pick

OtterBox

Elevation 20 Tumbler

PFAS grade

B 80/100

Overall grade

D 68/100

Verdict

Buy

Hazard flags

⚑ 3

Material

Stainless steel tumbler with powder coat or polyester exterior

Confidence

75%

PossiblePowder coat or polyester exterior degradation

PossibleStainless steel leaching (nickel)

PossibleMold and bacterial growth in seals

Why this gradeBuy

Yeti

Rambler 26 oz Bottle Straw Cap

PFAS grade

D 65/100

Overall grade

F 53/100

Verdict

Skip

Hazard flags

⚑ 3

Material

Stainless steel bottle, plastic straw cap

Confidence

72%

PossiblePlastic cap degradation and microplastic shedding

PossiblePlastic cap material identity and phthalate risk

PossibleBacterial growth in cap or seals

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 insulated drink tumblers & travel mugs: see the full ranking