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.

Unique TempShield double-wall vacuum insulation protects temperatures 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 caps.