10 Best thermoses 2026 in the United States

The Contigo West Loop 16oz travel mug is a solid choice if you're looking for a reliable thermos for daily coffee or cold drinks. It holds a moderate amount of 16 ounces, which is enough for a typical cup but not overly large to carry. Thanks to its Thermalock vacuum insulation, it keeps beverages hot for up to 5 hours and cold up to 12 hours—ideal for a work shift or a day out.

The stainless steel body is durable and BPA-free, making it safe and long-lasting, though it requires hand washing since only the lid is dishwasher-safe. Speaking of the lid, the Autoseal technology ensures the mug is leak- and spill-proof, which is great for travel or commuting. The push-button drinking system lets you sip with one hand, adding convenience on the go. The lid opens fully for easy cleaning, which helps prevent buildup and keeps it fresh.

It weighs about a pound, so it’s fairly portable but not ultra-lightweight. The mug is well-suited for anyone needing a dependable, spill-proof thermos with good temperature retention and easy, practical features for everyday use.

The Hydro Flask Wide Flex Cap Black 32 Oz thermos is a solid choice for keeping your beverages at the desired temperature. With a 32-ounce capacity, it offers ample room for drinks, making it suitable for day-long hydration. The double-wall vacuum insulation is a significant strength, as it keeps drinks cold for up to 24 hours and hot for up to 12 hours, making it versatile for various uses. Made from pro-grade stainless steel, it ensures durability and a pure taste with no flavor transfer between drinks.

The leakproof Flex Cap is convenient for carrying in a bag without worrying about spills, adding to its portability. Being dishwasher safe adds to the ease of cleaning, which is a plus for daily use. However, the thermos is not microwaveable, which limits reheating options if needed. Additionally, its weight (335 grams) might be slightly on the heavier side for some users, particularly if you're looking for an ultra-light option for activities like hiking.

Its sleek black design is appealing, but some may prefer more color variety. The Hydro Flask's dimensions may also make it a tight fit in smaller cup holders. Despite these minor drawbacks, the Hydro Flask Wide Flex Cap Black 32 Oz stands out for its excellent insulation, build quality, and practicality, making it a great choice for anyone needing a reliable thermos for both hot and cold beverages.

The YETI Rambler 42 oz Tumbler is a sturdy and well-insulated travel cup designed to hold a large amount of liquid, making it ideal for people who want to stay hydrated throughout the day without frequent refills. Its 42-ounce capacity is generous, suitable for long trips or busy days. Made from durable 18/8 stainless steel, this tumbler resists dents and damage from drops, which adds to its longevity. The vacuum insulation does a great job keeping cold drinks cold for hours, and the no-sweat design means your hands stay dry without condensation.

The included straw lid is convenient for sipping cold beverages but not recommended for hot drinks, so if you want to carry hot coffee or tea, you'll need to get a different lid. The tumbler includes a large handle, making it easier to carry, and its shape fits well in most cup holders, which is great for on-the-go use. It’s also dishwasher safe, so cleaning is straightforward and hassle-free.

The cup is fairly heavy compared to smaller or lighter models, which might be less convenient if you want something ultra-portable. The straw lid’s limitation to cold drinks could be a downside if you want one tumbler for all beverage types. This tumbler is a solid choice for anyone wanting a durable, large-capacity, well-insulated cup mostly for cold drinks, especially if you appreciate easy cleaning and a comfortable handle.