A Guide to Water Bottles for Hiking in 2021

Hiking is the ultimate activity for the lovers of the great outdoors. It can help you get up close to nature, break some sweat, and stay fit. However, hiking can be quite taxing on your body, especially if you are doing it on hilly terrain. You will lose a considerable amount of body water through sweating, which is why you need to hydrate properly before, after and throughout your hike.

Whether you’re a veteran hiker or a rookie, it pays to have the right water bottle for hiking before you hit your trail. That’s why we’ve put together a review of the 8 best water bottles for hiking. 

Before we delve right in …

Choosing the Perfect Water Bottle for Hiking – What to Consider?

There are several attributes of the best water bottle for hiking, but here are the most important ones:

Medium-High Capacity – Any water bottle with a capacity lower than 18 fluid ounces (half a liter) is a big no-no for hiking. On the flipside, one with a capacity larger than 32 fluid ounces will bog you down during your hike. So, choose one with a capacity that falls between 18 and 32 fl. Oz.

Insulated – Insulation is an absolutely crucial feature if you want your fluids to remain cold or hot during your hike. This is especially important for summer and winter hikes.

Wide Mouth Opening – If you’re planning to refill your water bottle for hiking frequently, be sure to choose one with a decent mouth opening. The same goes if you’ll be carrying something like smoothies or chunky soup.

Lightweight is Great – It’s a no-brainer that you don’t want a water bottle that will strain your hands during hiking.

Durable – Collapsible water bottles are usually ideal for hiking, but are they durable? If this is an issue for you, a stainless steel water bottle should be your go-to.

8 Best Water Bottles for Hiking


(1) Kool8 

Best Water Bottle for Hiking in 2021


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as of September 19, 2021 6:16 pm

Chicago’s own Kool8 company has everything going for it – it comes in a sleek, modern design that’ll simply knock your boots off. Kool8 is double-wall insulated to keep your hot drinks hot and cold drinks chilled, making it a perfect hiking water bottle for both summer and winter hikes. We absolutely love that 20 percent of the profit from each Kool8 water bottle purchase goes to a good cause. What’s even better is that the bottle is not only BPA-free but also fully eco-friendly and long-lasting to boot thanks to its stainless steel construction.

What to Love about Kool8?

  1. Fully Vacuum-Insulated: It comes with incredible insulation to keep your drink cold or hot as you like it.
  2. Love Tea? Kool8 is pre-fitted with tea infuser so you can enjoy your fave tea flavors on your hike.
  3. Eco-Cool: Break a sweat and stay hydrated while saving the planet
  4. Socially-Conscious: When you buy it, you’ll make a difference in someone else’s life.
  5. Durable & Strong: Industrial-strength of stainless steel design means no more wear & tear, chemical corrosion or scratches. Kool8 will look sleek and like-new, seeing you through many hikes.
  6. Great Color Choice: You can choose from green, red, grey, blue, pink (and more coming)


We can’t seem to put a finger on any drawback that comes with buying Kool8. It’s just that Holy Grail of the best water bottle for hiking.


(2) YETI Rambler (18 Fl.oz, www.yeti.com)


YETI Rambler 18 oz Bottle, Vacuum Insulated, Stainless Steel with TripleHaul Cap, Black

$58.70  in stock
1 new from $58.70
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as of October 18, 2021 7:30 pm


  • DuraCoat Color that is built to last - no fading, peeling, or cracking here
  • Leakproof TripleHaul Cap protects your truck cab or day pack from spills; complete with 3-finger grip
  • This Double-Wall Vacuum Insulated water bottle has the power to keep your water cold (or coffee hot) until the last sip
  • 18/8 stainless steel construction stands up to even the toughest of conditions
  • Dimensions: 9 1/2 in high, diameter of 3 in. Fits standard sized cup holders

Featuring 18/8 stainless steel construction, wide opening, and screw lid, Yeti Rambler is a durable water bottle that’s designed for hiking. There’s also a 32 fl.oz but quite heavy for some hikers.

What to Love about Yeti Rambler?

  1. Durable
  2. Fairly good insulation
  3. The wide opening means hassle-free refills and cleaning


It’s a slightly heavy water bottle – not for every hiker though it is still one of the best water bottles for hiking, in our humble opinion.


(3) Contigo AutoSeal Fit Water Bottle


Contigo Autoseal Chill Stainless Steel Water Bottles, 24 oz, SS/Monaco & Monaco, 2 Pack

$27.95  in stock
3 new from $27.95
15 used from $20.96
Free shipping
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as of October 18, 2021 7:30 pm


  • THERMALOCK double-walled vacuum insulation keeps drinks cold up to 28 hours
  • One-hand-operated AUTOSEAL button seals the lid between sips to eliminate spills and leaks
  • Protective spout cover keeps dirt and germs off mouthpiece for cleaner drinking
  • Integrated carrying handle for easy transport
  • Top-rack dishwasher-safe lid; hand-wash-only body

Expect this vibrant-looking water bottle to keep your drinks hot and cold for up to 10 hours and 29 hours respectively.

What to Love about Avex FreeFlow AutoSeal?

  1. AutoSeal Technology means no accidental spills
  2. Robust design
  3. Push-button operation
  4. Commendable insulation


Due to its highly sophisticated construction/design, it is highly likely to malfunction


(4) CamelBak Crux Reservoir


CamelBak Crux 100 oz Hydration Pack Reservoir, Blue

$34.06  in stock
8 new from $34.06
2 used from $23.61
Free shipping
Buy Now
as of October 18, 2021 7:30 pm


  • Crux 3L Reservoir, Blue

If you are looking for a bladder water bottle with a huge capacity, CamelBak Crux Reservoir is your best bet. It’s available in either 70 or 100 fluid ounces. The water bottle itself is leak-proof, self-sealing and comes with anti-microbial tech for utmost sanitation.

What to Love about CamelBak Crux Reservoir?

  1. Extra-large capacity
  2. Large bite valve for easy sipping
  3. Antimicrobial technology


  1. No insulation
  2. Might seem tacky if not handled well


(5) Klean Kanteen Classic 


Klean Kanteen Classic Stainless Steel Bottle with Sport Cap, Flame Orange - 27oz

 in stock

Free shipping
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as of October 18, 2021 7:30 pm


  • Durable and High Quality Food Grade 18/8 Stainless Steel Construction
  • Comes with BPA-free Polypropylene #5 cap
  • Large 1.75 inch (44 millimeter) opening fits ice, easy to fill and pour; Compatible with all Klean Kanteen Classic caps
  • Easy to clean electropolished interior doesn't retain or impart flavors
  • Backed by the Klean Kanteen Strong as Steel Guarantee

Hiking means sweaty hands or slippery gloves. With Klean Kanteen Classic, that’s a thing of the past with anti-slip outside cover for great grip. Even better, it has double-wall vacuum insulation, which means it can keep drinks cold for up to 90 hours in hot weather, and keep beverages hot for up to 24 hours in cold conditions. It’s also fairly affordable and comes with a screw cap complete with a handy loop for attachment. The wide opening is great for effortless refilling making it one of the best water bottles for hiking this year.

What to Love about Klean Kanteen Classic?

  1. Large Capacity: 32 fluid ounces is plenty enough for at least an hour hiking
  2. Easy handling: Has a carabiner and a loop for easy attachment
  3. Great Insulation: Double-walled insulated for great results
  4. Durable: Well-built and will last long


  1. It has a fairly narrow opening which makes it hard to clean it
  2. Not exactly a looker like Kool8


(6) Nalgene Tritan


Nalgene Tritan Wide Mouth BPA-Free Water Bottle, 32 Oz, Red w/Green

 out of stock
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as of October 18, 2021 7:30 pm


  • BPA free, made using the finest plastics and metals
  • Great for use in both outdoor and indoor activities
  • Large opening on wide-mouth bottle easily accommodates ice cubes, fits more water purifiers and filters, and makes hand-washing a breeze.
  • Printed graduations let you keep track of your hydration.
  • Attached Loop-top never gets lost and screws on and off easily.

Don’t let the plastic construction deter you from buying this water bottle. It comes in three high capacity variants – 14,16 & 32 fl.oz). It’s also BPA-free, safe to put in a dishwasher, and humongous mouth opening.

What to Love about Nalgene Tritan?

  1. Eco-friendly
  2. Can carry plenty of beverages for hiking
  3. Dishwasher-safe and wide-mouth opening for easy cleaning


Lacks insulation – only for short hikes


(7) Hydro Flask Wide Mouth 


Hydro Flask Water Bottle - Stainless Steel & Vacuum Insulated - Wide Mouth 2.0 with Leak Proof Flex Cap - 32 oz, Hibiscus

$44.99  in stock
12 new from $44.99
2 used from $30.01
Free shipping
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as of October 18, 2021 7:30 pm


  • Newly produced Hydro Flasks do not feature a registered trademark symbol next to the logo
  • Keeps cold drinks icy cold and hot drinks piping hot for hydration any time, anywhere
  • Slip-free powder coating doesn't sweat and is dishwasher safe for easy cleaning and convenience
  • A sustainable metal water bottle with a clean design, for a better planet
  • Hydro Flask water bottles come with a limited lifetime warranty against manufacturing defects

This water bottle has gained traction with hiking enthusiasts – and with good reason. Hydro Flask Wide Mouth has a large capacity yet functional and lightweight. It boasts TempShield technology eliminating condensation and the need for a heavy bottom cap. It can keep beverage cold and hot up to 24 hours and 12 hours respectively. Its price might be out of the range for some buyers, though even if it deserves its spot on our list of best water bottles for hiking. 

What to Love about Hydro Flask Wide Mouth?

  1. Large capacity (32 ounces)
  2. Industrial Strength – It’s resistant to abrasion and durable construction
  3. Easy to Handle thanks to its slip-free finish
  4. Compatible with several different lids
  5. Great insulation-to-weight ratio
  6. No heavy bottom cap thanks to TempShield technology
  7. Easy to clean and refill thanks to its wide mouth design


It’s quite expensive


(8) CamelBak Chute


CamelBak Chute Mag BPA Free Water Bottle with Tritan Renew, 32oz, Charcoal

$16.00  in stock
2 new from $16.00
3 used from $10.56
Free shipping
Buy Now
as of October 18, 2021 7:30 pm


  • Magnetic Cap: Stows out of the way when drinking
  • Color Match Tether
  • Easy to Carry: Comfortable carry handle
  • Leak-Proof: Leak-proof when closed
  • Lightweight and Durable

Chute Vacuum is a water bottle that has become a darling of mountaineers, hikers, and backpackers alike. It comprises a sophisticated look, trendy design, great grip, and wide opening.

What to Love about CamelBak Chute?

  1. Lightweight with sophisticated & functional cap
  2. Trendy design
  3. Anti-slip material on the outside
  4. Easy cleaning


Not particularly good insulation quality

Interested in exploring more water bottles? Also check out our article on: 10 Best Water Bottles: EcoFriendly, Light & Modern


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