The Narrow Mouth bottle is our original mouth size. It is ideal for keeping your liquids chilled all day or warm well into the evening. Ice cubes from standard refrigerator ice dispensers fit perfectly through the Narrow Mouth.

Our water bottles were developed to perform in every environment. Each Hydro Flask is hand cast from double wall vacuum insulated food grade 18/8 stainless steel, therefore they are BPA-Free and resistant to bacteria and odors. Our double wall vacuum insulation technology allows Hydro Flasks to keep contents hot for 12 hours and cold for 24 hours.

Features:

• Patented Narrow Mouth
• Double Wall Vacuum Insulated
• Keeps Hot 12 Hours
• Keeps Cold 24 Hours
• BPA-Free
• 18/8 Stainless Steel
• Lifetime Warranty