Standard Mouth Sport Cap
Standard Mouth Sport Cap

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Product Description

Say hello to the insulated Sports Cap, designed to fit standard-mouth Hydro Flask bottles. Made from BPA-free plastic, this cap eliminates that annoying whistling sound other caps create. 

  • Keeps your drink colder even longer
  • Unique internal valve eliminates whistling sounds
  • Easy to drink from and allows for 1-handed open and close
  • Designed to fit 12, 18, 21 and 24 fl. oz. standard-mouth Hydro Flask bottles
  • Made from BPA-free polypropylene #5
  • Material: Polypropylene
  • Dimensions: 2.7 x 2.7 inches
  • Weight: 1.4 ounces
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