Stanley capacities are shown in ounces (oz) on the brand’s official listings —
here’s their litre equivalent and what each one suits best, based on our catalogue.
The three capacities in our catalogue
| 0.71L (24 oz) | The most compact — slips into a bag. IceFlow Bottle Flip Straw 2.0 size. |
|---|---|
| 0.89L (30 oz) | A good all-round size for the day and sport. IceFlow Flip Straw 2.0 (mug) size. |
| 1.18L (40 oz) | The largest, so you refill less often. Quencher H2.0 FlowState and Quencher ProTour Flip Straw size. |
How to choose
For use at a desk or in the car where refilling is easy, 0.71L or 0.89L is
plenty and fits in most bags. To cover a full day without a second thought — sport,
long journeys, or simply drinking more water day to day — the 1.18L avoids repeat
trips to the tap.
Every capacity keeps drinks cold for several hours (up to 48 hours with ice
depending on the model) and has a narrow base that fits most car cup holders.
The choice also depends on the model and
its lid — see our comparison if capacity alone doesn’t settle it.