Elevation 28 Sport Bottle vs Rambler Tumbler YETI: which is safer?

Rambler Tumbler YETI is the clear pick. OtterBox Elevation 28 Sport Bottle carries a failing PFAS grade, and we never recommend buying a failing product.

OtterBox

Elevation 28 Sport Bottle

PFAS grade

F 20/100

Overall grade

F 2/100

Verdict

Skip

Hazard flags

⚑ 3

Material

stainless steel with hydrophobic water-resistant coating

Confidence

62%

PossibleHydrophobic coating composition (fluorinated or siloxane)

ReportedCoating degradation and microparticle shedding

PossibleBacterial or mold growth in seals and cap

Why this grade

Our pick

Yeti

Rambler Tumbler YETI

PFAS grade

B 80/100

Overall grade

C 76/100

Verdict

Buy

Hazard flags

⚑ 1

Material

18/8 stainless steel, no coating

Confidence

82%

PossibleNickel leaching from stainless steel

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 insulated drink tumblers & travel mugs: see the full ranking