The Hydro Flask 621ml Standard Mouth Flask is the ideal travel companion. It stashes easily into a small shoulder bag, your pack’s side pocket, or your car cup holder, and holds enough ice-cold goodness to keep you going for hours without weighing you down.
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Unique TempShield™ double-wall vacuum insulation protects temperature for hours. Made with 18/8 pro-grade Stainless Steel to ensure pure taste and no flavour transfer. BPA and phthalate-free and compatible with standard mouth-insulated sport cap.