• 40oz (1182ml) Wide
  • Stainless Loop Cap
  • Stainless Flip D-Ring Cap
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  • Kanteen Wide Mouth Water Bottle
  • Kanteen Wide Mouth Water Bottle
  • Kanteen Wide Mouth Water Bottle
  • Kanteen Wide Mouth Water Bottle
  • Kanteen Wide Mouth Water Bottle
  • Kanteen Wide Mouth Water Bottle

Wide-Mouth Steel Bottle for the Outdoors

The 40oz Kanteen® Wide is the ultimate bottle for long trips on the road or in the backcountry. When your adventure spans days or weeks instead of hours, when you need enough water to go the distance, when you're out all day and don't have access to easy refills, this is your bottle. The extra wide opening is more than 2 inches in diameter for quick filling, pouring and cleaning, and the stainless steel thread design works with standard backcountry water filters. Even though it holds 8 ounces more than a quart-sized bottle, it's shorter and more compact than the Kanteen Classic so it's easy to fit one or two into a backpack or a cooler.

The 40oz Wide comes with either a Stainless Loop Cap or the swank and functional Flip D-Ring Cap. Both caps are 100% stainless steel on the inside, so your drinks never touch plastic. All Klean Kanteen products are made from high quality, 18/8, food-grade stainless steel that's totally free of BPA and other toxins. Because stainless steel itself is safe, we don't need to coat the inside with a plastic or epoxy lining, which is one of the main differences from aluminum bottles. No matter how many times you refill it, no matter what you put into it, your Klean Kanteen will keep your drinks fresh, crisp and clean.

Kanteen Wide Testimonial
  • Extra wide mouth for easy filling and pouring
  • 18/8 food-grade stainless steel, no liner
  • 100% stainless interior (stainless caps)
  • No BPA, phthalates, lead, or other toxins
  • Doesn't retain or impart flavors
  • Rounded corners are easy to clean with no hard angles where dirt or bacteria can stick
  • External, stainless steel threads
  • Works with most backcountry water filters
  • Dishwasher safe
  • Lifetime warranty
Lifetime Warranty18/8 Stainless SteelBPA Free100% Stainless InteriorWide MouthWater Filter CompatibleDishwasher Safe
  • Capacity: 40 fluid ounces (1182 ml)
  • Weight: 7.375 ounces (w/o cap)
  • Size: 8.625” H (w/o cap) x 3.5” W
  • Opening diameter: 2.125” (54 mm)
  • 18/8 food-grade stainless steel
  • Visit Kanteen 101 for more details
Wide Mouth
1% For the PlanetCertified B CorporationGreen America MemberGreen Shipping

At Klean Kanteen, we provide high quality, long-life, sustainable solutions that replace single-use items. "Sustainable" is a word we don't use lightly. It means a lot more than just carbon offsets, recycled packaging or wind energy. A sustainable business consciously adopts practices that benefit more than the bottom line. We must consider the sum total of our interactions with people, the environment, culture and technology. We continually work to lessen our impact in four key areas: energy, water, waste, and chemicals. As we strive be a model and a leader, sustainability will continue to drive our decisions much as it was a driver of the invention of the first Klean Kanteen itself.

Customer Quotes:

"Set out on one of my life's to-do's and cover a good portion of the western United States. This was a 35 day, solo, car-camping trip that included skis, 2 bikes, tent (4-season thankfully!), camera and my 2 Kleen Kateens! To say that both of these bottles come with me everywhere is an understatement! I will admit that I got more mileage out of my 40oz bottle. It was by my side the almost every day the last 2 years. Every car trip, bike trip, ski day and came with me on every backpacking and car camping trip!" - Steven

"I use my 40oz Klean Kanteen at work, and on the trail, with all my meals. Thank you KK for making such great products." - Matthew

"Amazing canteens that last FOREVER (=" - Hannah

"I love my 40oz Klean Kanteen, it goes everywhere with me. :) I'm hoping to pick up a smaller size for my 5 year old son soon!" - Kelly

  • 40oz Classic
  • Wide Stainless Loop Cap
  • Partners - NatureBridge and American Hiking Society
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