Update: Now up to $30, and backordered.

Vacuum-insulated water bottles can keep liquids cold for an entire day, and this 40 ounce Hydro Flask is near its all-time low price today. If you like camping, hiking, or just working out outdoors, you can’t go wrong here. [Hydro Flask Insulated Stainless Steel Water Bottle, Wide Mouth, 40-Ounce, $27]

If you still aren’t convinced, this was a finalist in our best water bottle Kinja Co-Op.

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