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Hydro Flask Standard Mouth Sport Cap


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  • Regular price $9.99
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From mountain trails to morning yoga class, our Standard Mouth Insulated Sport Cap lets you hydrate one-handed and on the fly. It’s the first insulated sport cap specifically designed to keep water in your Hydro Flask bottle ice cold, sip after sip.

  • Compatible with all Standard Mouth bottles

  • Insulated for enhanced temperature protection

  • Quiet, "no whistle" valve

  • BPA-Free and Phthalate-Free

  • Sport Cap is not intended for use with hot liquids and is not leakproof

  • Lifetime Warranty