Built All Day Insulated Lunch Bag vs Double Wall Vacuum Insulated Stainless Steel Food Canister Container with Leak Proof Lid: which is safer?

Where these two actually differ

• We flag Waterproof coating leachables (non-PFAS), Polyester microplastics from fiber shedding and Coating degradation and flaking on the Built NY and not on the Klean Kanteen.
• We flag Silicone gasket degradation, Bacterial growth in vacuum seal and Surface corrosion under acidic conditions on the Klean Kanteen and not on the Built NY.
• The Built NY is Polyester exterior with waterproof coating (unspecified type) where the Klean Kanteen is Stainless steel body, silicone gasket lid seal, which is most of the difference in these two grades.
• The gap is 75 points, wide enough that this is not a close call, and the Klean Kanteen is the one to buy.
• We are less certain about the Built NY grade, at 35% confidence against 82%, because it discloses less.