Rambler 20 oz Tumbler
Double-wall vacuum insulated stainless steel tumbler. 18/8 stainless steel body with no plastic in beverage contact path.
How scores are calculated
Materials (40%): How plastic-free the product is — raw materials, construction, and coatings.
Packaging (20%): Is the product packaged in plastic? Is it recyclable?
Transparency (20%): Does the brand disclose ingredients, sourcing, and manufacturing?
Durability (20%): How long does it last? Longer-lasting products reduce plastic waste over time.
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Last updated: April 5, 2026
Food and drink packaging is one of the most direct routes of plastic chemical exposure. Canned goods, plastic bottles, and food packaging can leach BPA, BPS, phthalates, and microplastics directly into food and beverages. Heat dramatically accelerates chemical migration.
Why We Recommend This Product
YETI's stainless steel tumblers are excellent. The 18/8 stainless steel body is completely inert. The food-grade plastic lid is not in contact with the beverage during drinking. Extremely durable and worth the investment.
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