RAYMYLO 64 oz Insulated Water Bottle
A half-gallon bottle for the car or the beach, not the plane
A 64 oz triple-wall vacuum-insulated stainless bottle, rated by the brand for 48 hours cold and 24 hours hot. It comes with straw and spout lids, a paracord handle and a carrying pouch.
Our take
A bigger bottle looks like it saves refills. On most trips it just costs you space. This one holds 64 oz, a half gallon, in a triple-wall stainless bottle the brand rates for 48 hours cold and 24 hours hot.
In the right spot it's great. Leave it in the car on a road trip, carry it down to the beach, or park it at a campsite. You get a straw lid and a spout lid, a paracord handle and a carrying pouch, and it's widely reviewed. But full, it's heavy, and even empty it eats a big chunk of a carry-on or daypack.
Buy it if you drive to where you're going. If you fly or walk all day, save the money and get a 24 to 32 oz bottle you refill along the way.
Who it’s for
Car campers, beachgoers and road trippers who want a big supply of cold water close by.
Skip it if
Skip it if you fly, walk a lot or carry a daypack. A 24 to 32 oz insulated bottle covers most days and packs far easier.
RAYMYLO 64 oz Insulated Water Bottle: questions people ask
Is a 64 oz water bottle too big for travel?
For flights and city days, usually yes. It's heavy full and bulky empty. It makes more sense in the car, at the beach or at camp.
Can you bring a large empty bottle through airport security?
Empty bottles are allowed through US security. A half-gallon one eats a lot of carry-on space, though.
Does triple-wall insulation keep water colder?
The brand claims up to 48 hours cold. Real results depend on the heat, how full it is and how often you open it.
Where we recommend it
More in Water Bottles & Hydration
Hydro Flask 24 oz Wide Mouth Bottle with Flex Straw Cap
The right size for road trips and city days, but the straw lid is more work to clean in a hotel sink than a screw cap.
Nalgene 32 oz Wide Mouth Bottle
A tough, light quart for hikes and road trips that pairs with many water filters, but it isn't insulated and the wide mouth splashes on the move.
Hydro Flask 18 oz Standard Mouth Bottle with Flex Cap
Small enough for a side pocket on city days, but you'll refill a lot in the heat, so hikers should go bigger.
Prices change often — the price on the retailer’s page is the one you pay.