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Having your favorite beverage handy is a must, but keeping it at your ideal temperature can be tricky. Insulated water bottles provide an excellent solution to this problem. Thin, durable layers of vacuum sealed stainless steel trap cold and heat within the interior walls of the bottle while the outer layer remains cool to the touch and condensation free. So which insulated flask is right for you? We lay it out here.

This container comes in multiple eye-catching designs that makes it easy to spot and hard to lose, and a cleaning brush is included. IRON °FLASK

Insulated water bottles come in a variety of materials. However, choosing a flask that uses stainless steel is often key. Food grade stainless steel—unlike other metals and alloys—will not rust or deteriorate with heat or moisture.

This oversized canteen easily opens and snaps shut with the flick of a finger. Simple Modern

Good insulated bottles will be double-walled to help reduce condensation from cold drinks. Between the walls is vacuum-sealed space to help maintain the internal temperature.

Good Bang for Your Buck

This flask can hold nearly ⅓ of a gallon and comes with two top styles. HYDRO CELL

When you’re looking for an insulated water bottle, consider what kind of lid and mouth opening you might need. For instance, if you use your bottle just for water that you fill at the tap, a narrow opening will work just fine. However, if you are going to regularly use your flask for hot drinks or hard-to-pour liquids, consider choosing a wide mouth for easy, mess-free filling.

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