Altitude Sports
Altitude Sports
Hydro Flask 18 oz Wide Mouth Bottle


Hydro Flask

Hydro Flask 18 oz Wide Mouth Bottle


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For those who like a wider mouth in a smaller, easy to carry size. Replacing the existing cap on all our Wide Mouth bottles, the new award-winning Flex Cap is the ideal combination of strength and flexibility. Designed for ultimate portability, we crafted every detail with easy-carry comfort in mind – and insulated it too– so you can go further, for longer, keeping your favorite beverage comfortably by your side.

• Convenient Carry Size
• Ideal for Day Packs

• TempShield™ Protected
• Keeps cold up to 24 hours
• Keeps hot up to 6 hours
• 18/8 Pro Grade Stainless Steel
• BPA-Free
• Durable, sweat-free powder coat finish (or our Classic Stainless option)
• Industry-standard wide mouth opening fits many third-party water filters
• Compatible with Wide Flat Cap, Hydro Flip Lid and Wide Straw Lid