Water bottles that will keep their cool for hours, no matter how hot it is

If you've stepped outside this week, you know this summer isn't messing around. With heatwave warnings, a standard plastic bottle won't cut it for keeping your water cool.

We all want that ice-cold after 24 hours promise, but dropping upwards of $80 (and more) on a bottle can feel steep when the cost of living is biting hard.

To save you the trouble of research, we've rounded up insulated water bottles that will keep your water cold for hours on end.

NOTE: Prices are accurate at the time of publishing.

Stanley Quencher H2.0

Was $80, now $66.27

Insulation: Double-wall vacuum insulation

Sizes: ~400mL to ~1.8L

The Stanley Quencher H2.0 is a staple insulated water bottle made from 90 per cent recycled stainless steel. It fits in almost any car cup holder and features a rotating lid that can function as a straw, a drink opening, or a full-cover top that is dishwasher safe. While the insulation keeps ice frozen for hours, the lid is designed to only resist splashes, so make sure to keep the bottle upright!

Ever Vessel Super Maxi

Now $69

Insulation: Double-wall vacuum insulation

Sizes: 750mL to 1L

The Super Maxi is an award-winning, double-wall vacuum-insulated water bottle designed to keep your water cool without leaking. You can choose between 10 colourways and add on up to five accessories, including a cold brew coffee kit and a tea infuser strainer for beverages other than water.

Owala FreeSip Tumbler

Get yours for $89.99

Insulation: Triple-wall vacuum insulation

Sizes: ~887mL to ~1.18L

Built with triple-layer insulation, a leak-proof lid, a comfortable side grip and an easy push-button to open, the Owala FreeSip Tumbler seeks to be the gold-standard for insulated water bottles. No need to worry about mould, as it's dishwasher-safe.

Stanley IceFlow 2.0

Now $69.99

Insulation: Double-wall vacuum insulation

Sizes: ~600mL to ~900mL

While the Stanley Quencher might boast a bigger build, the Stanley IceFlow 2.0 is arguably the smarter choice for active Aussies who want a bottle to chuck in their bag. It features a Flip Straw 2.0 lid, designed for faster sipping and a snap-shut mechanism that creates a leak-resistant seal. Made from dishwasher-safe, recycled stainless steel, it keeps drinks cold for 20 hours or iced water cold for up to three days.

Yeti Rambler with Chug Cap

Buy here!

Insulation: Double-wall vacuum insulation

Size: 567mL

If you want a bottle that can handle drops, the Yeti Rambler is a great bottle that's built with tough stainless steel and a coat colour that won't fade, peel, or crack. The chug cap itself allows you to quickly half-twist the handle and sip without slowing down, or you can remove the entire cap for a refill. Just note that the bottle is not intended for hot drinks, but it's too hot for that right now anyway.

Frank Green Ceramic Reusable Bottle

Now $99.95

Insulation: Triple-wall vacuum insulation

Size: 591mL to 2L

Frank Green sets itself apart with a customisable drink bottle and a ceramic lining inside the bottle for a better, less tinny taste. The triple-wall insulation will ensure your drinks stay cool for hours. However, you'll want to make sure to clean out these bottles thoroughly to avoid mould (as goes with the other bottles too), but don't throw these in the dishwasher, the colour coating won't survive.

Hydro Flask Wide Mouth

Now $45.99

Insulation: Double-wall vacuum insulation

Sizes: 600mL to 1.9L

The Hydro Flask offers excellent 24-hour insulation for cold drinks or up to 12 hours for hot beverages. It comes with a flex cap that is leakproof when closed, a wide mouth opening for ice, the parts are dishwasher-safe, and there are plenty of colours to choose from.

Anko Navy Dual Function Drink Bottle

Now $14

Insulation: Double-wall stainless steel

Size: 940mL

For a fraction of the price of the big brands, this Anko Bottle offers a cheap solution with a dual-function, leakproof lid. While the 940mL capacity is generous, it is only rated to keep drinks cool for up to 6 hours, so don't expect ice cubes to survive a full day.

READ MORE: Portable air conditioners to help you beat the summer heat