
Waterdrop
Waterdrop Thermo Steel Bottle Insulated Stainless 34oz
Double-wall vacuum insulated 18/8 stainless steel bottle with a stainless steel cap. No plastic in the liquid path.
Each of the 3 Waterdrop products listed here disclosed its materials and passed all 15 published criteria. Nothing is listed for a fee, and affiliate commissions never affect what qualifies. Listings are re-checked on a rolling basis and come off when a product changes.
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Waterdrop
Double-wall vacuum insulated 18/8 stainless steel bottle with a stainless steel cap. No plastic in the liquid path.

Waterdrop
Borosilicate glass bottle with a bamboo lid and limited-edition botanical print. Includes a matching fabric sleeve. No plastic in the liquid path.

Waterdrop
A 34 oz borosilicate glass bottle with a bamboo cap and neoprene sleeve — glass-only liquid path, no plastic touches the water.