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Walking Equipment and Accessories

Hydro Flask 21oz Standard Mouth Water Bottle | Review

The Hydro Flask is a lightweight bottle to keep you liquids cold all day

When you are trekking through the desert, biking down a singletrack or surfing on a tropical beach, there is one thing you do not want: lukewarm drinking water. No one likes taking a sip from their bottle to find bath-temperature water inside.

Hydro Flask are masters at creating water bottles that keep your liquids cool all day. While some companies say they offer 24-hour cold insulation, Hydro Flask actually deliver. Each water bottle is made with a double-wall vacuum insulation called TempShield, so it maintains its temperature regardless of what’s going on outside.

We tested our Hydro Flask while travelling around Australia and Bali. It was left on the beach in the scorching heat and thrown into a backpack for long jungle hikes – it lived up to expectations. My water stayed ice cold, even hours after filling up.

You’ll never have to suffer lukewarm drinking water, cold tea or warm lager again.”

Hydro Flask originated in Oregon, USA and you can see why. Located between the mountains and the desert, it is the perfect testing ground for a durable water bottle, designed to cope with a whole range of temperatures – from sub-zero snowstorms to baking hot summer days.

Not only does the 21oz Hydro Flask carry a decent amount of water – just over half a litre – it is also lightweight, so you can easily stash it inside your backpack and stay hydrated on the move. It doesn’t leak either. You can carry your camera and water bottle in the same pouch, secure in the knowledge that it won’t end in disaster.

Each bottle is coated in a signature powder which makes it durable and slip-free, so you can grab hold of your Hydro Flask with sweaty or wet hands. It comes in a rainbow array of colours – choose from a subtle silver bottle or luminous yellow, depending on your vibe.

The Hydro Flask is purpose-built to keep your liquids cool all day. Photo: Chris Johnson.
It's one of the only flasks able to deliver on 24-hour cold insulation. Photo: Chris Johnson.
It carries over half a litre of water and is lightweight. Photo: Chris Johnson.
Each water bottle features a double-wall vacuum insulation. Photo: Chris Johnson.

The beauty of the Hydro Flask is that it’s not just a summer water bottle. Come winter, fill it up with hot tea and it will stay warm for up to 6 hours. Beer lovers, take note. Hydro Flask also made the first ever insulated growler. So you can take ice cold beer on your next backcountry camping trip. So what are you waiting for? Get yourself a Hydro Flask and you’ll never have to suffer lukewarm drinking water, cold tea or warm lager again.

Hydro Flask 21oz Standard Mouth

Shot on location in Chamonix.

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