Insulated Water Bottles to Keep Your Drinks Cold (or Hot)

Three things to consider before getting a new drink container.

Man working out with insulated water bottle beside him.
Keep things hot—or cool—on the go.Andrea Piacquadio, Pexels

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.

IRON °FLASK Retro Water Bottle - 17 Oz, Vacuum Insulated Stainless Steel, Hot Cold, Modern Double Walled, Simple Thermo Mug, Hydro Cola Metal Canteen (Dark Rainbow)
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.

Simple Modern 32 Ounce Summit Water Bottle - Stainless Steel Tumbler Metal Flask +2 Lids - Wide Mouth Double Wall Vacuum Insulated Leakproof Ombre: Moonlight
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.

HYDRO CELL Stainless Steel Water Bottle w/Straw & Wide Mouth Lids (40oz 32oz 24oz 18oz) - Keeps Liquids Hot or Cold with Double Wall Vacuum Insulated Sweat Proof Sport Design
This flask can hold nearly ⅓ of a gallon and comes with two lid 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.