HF Standard Mouth Sport Cap
From mountain trails to morning yoga classes, our Standard Mouth Insulated Sport Cap makes all your adventures better. Itâ€™s the first insulated sport cap specifically designed to keep the ice water in your Hydro Flask bottle cold, sip after sip. Plus, the unique design lets you hydrate one-handed, whether youâ€™re checking out wild flowers in the wilderness or showing off your warrior pose in the gym.
- Compatible with all Standard Mouth bottles
- Insulated for enhanced temperature protection
- Quiet, "no whistle" valve
- BPA-Free and Phthalate-Free
- Lifetime Warranty