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Make hydrating on the go easy with the Standard Mouth Sports Cap bottle accessory. The Standard Mouth Sports Cap fits Hydro Flask 12 oz and 21 oz Standard Mouth water bottles (sold separately), is BPA-free, and 100% recyclable. The large loop makes for easy attachment and carrying.
NOTE: The Hydro Flask Standard Mouth Sports Cap will NOT fit Wide Mouth Hydro Flask bottles.
- Fits 12 oz and 21 oz standard mouth water bottles
- Makes hydrating on the go easy
- BPA free
- 100% recyclable
- Lifetime warranty