Coolflask Long-lasting Insulated Water Bottle, 64 oz, Triple-Wall Steel
Product description
For hikes, sports and busy days away from home, a large bottle can help you carry more water between refills. The Coolflask 64 oz insulated bottle pairs that capacity with a stainless-steel body for everyday hydration and travel.
Triple-wall vacuum insulation is designed to keep drinks cold for over 48 hours or hot for 24 hours. That makes it useful for carrying water on a long outing, or bringing coffee, tea or soup along for the day.
Three lid styles let you choose how to drink and carry it: sip through a straw, use the spout, or switch to the handled screw-on lid. A carrying bag and shoulder strap add another way to transport the bottle.
Technical details
- Capacity: 64 oz
- Material: 18/8 stainless steel, with copper plating and a vacuum insulation layer
- Insulation: Keeps beverages cold for over 48 hours and hot for 24 hours
- Dimensions: 14.4W x 31.1H centimetres
- Weight: 1.2 kg
- Features: BPA-free, sweat-resistant coating, reusable
- Recommended drinks: Water, coffee, juice, soup and tea
The generous capacity suits people who prefer filling up before heading out rather than relying on frequent refills. Its insulated construction supports both cold and hot drinks, while the coating helps keep the exterior dry to hold. Compared with a smaller bottle designed for quick trips, this format is geared towards longer stretches between stops, such as a hike, a sports event or a day outdoors.
How to use it
Choose the lid that fits the drink and occasion. The straw lid is suited to sipping cold drinks, the spout lid offers another direct-drinking option, and the screw-on lid has a flip-up handle for carrying and adding ice. Secure the selected lid before transporting the bottle, and use care when handling hot liquids to avoid scalding.
The bottle can be used for water as well as coffee, tea, juice and soup. For outings where access to refills is limited, filling it before you leave makes the 64 oz capacity especially practical. It is intended for use with drinks, not soft drinks, and should not be placed in a freezer or microwave.
Box contents
The package includes the bottle, a handled lid, a spout lid and a straw lid with two straws and a straw brush. A pouch-equipped carrying bag and shoulder strap provide carrying options for travel and outdoor activities. Having different lids on hand makes it easier to choose between sipping, using a spout or carrying the bottle by its handle.
Buyer feedback often highlights the large size, cold-drink retention and the convenience of the carrying case for road trips. Experiences with the straw and sealing are mixed, so choose the lid that suits your routine and close it securely before carrying.
What to clarify
How long can it keep drinks cold or hot? The triple-wall vacuum insulation is specified to keep beverages cold for over 48 hours and hot for 24 hours.
Which lid should I use for cold drinks? The straw lid is designed for sipping cold beverages. The spout lid and handled screw-on lid provide alternative ways to drink and carry the bottle.
Can I put it in a freezer or microwave? No. The care guidance says not to place the bottle in either appliance, and recommends care when handling hot liquids.
Buying verdict
This Coolflask is suited to adults who want a high-capacity bottle for longer outings, sports or everyday hydration. Its 64 oz size reduces the need to refill as often, while the insulation, three lid choices and carrying accessories help adapt it to different drinks and travel routines.