Standard Mouth Sport Cap

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.

Product Benefits

• 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