Description
From mountain trails to morning yoga class, the 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.
Features
- Standard Size Sports Cap fits all Standard Mouth Hydro Flask bottles to provide the ideal solution for on-the-go hydration needs
- The unique internal valve eliminates the whistling associated with most sport caps
- Hydro Flask Sports Caps are insulated to aide in keeping your Hydro Flask contents cold or hot all day
- BPA-Free, Lifetime Warranty
- It never hurts to have an extra cap!