How Many Water Bottles Should You Drink a Day?
About 9 cups of drinks a day for women, 13 for men, per the National Academies. What that means in refills of a 17, 25 or 34 oz bottle.
Read moreStainless steel water bottles in 18/8 (304) steel, double-wall insulated, with no coating inside — the coating is the part you eventually taste, and there is none here.
25 hours cold, 13 hours hot, no preheating. Leak-proof with sparkling water. Dishwasher safe.
Tested for lead under the US CPSIA — report, July 22, 2026. The Double Vacuum's click lid is plastic; on the classic and silicone-coated bottles the drinking path is steel and silicone only.


About 9 cups of drinks a day for women, 13 for men, per the National Academies. What that means in refills of a 17, 25 or 34 oz bottle.
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One US gallon holds 128 fluid ounces. Full tables for oz, cups, quarts and liters, plus how many refills of your bottle make a gallon.
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