21Oz Insulated Water Bottle + Standard 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.

Features:

• TempShield Protected
• Keeps cold up to 24 hours
• Keeps hot up to 6 hours
• 18/8 Pro Grade Stainless Steel
• BPA-Free and Phthalate-Free
• Durable, sweat-free powder coat finish (or our Classic Stainless option)
• Lifetime Warranty
• Compatible with Standard Loop Cap and Sport Cap