• 40oz (1182ml) Classic
  • Sport CapLoop Cap
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  • 40oz Kanteen Classic Water Bottle
  • 40oz Kanteen Classic Water Bottle
  • 40oz Kanteen Classic Water Bottle
  • 40oz Kanteen Classic Water Bottle
  • 40oz Kanteen Classic Water Bottle
  • 40oz Kanteen Classic Water Bottle

Large Volume, Durable Steel Bottle for the Long Haul

When 27 ounces just isn't enough, this is. The 40oz Kanteen® Classic is great for long car trips, camping, a late-night session at the office, a trip to the beach or any time you need to carry a lot of liquid and don't have the option of easy refills. The 40oz is available with the Sport Cap 3.0; featuring a soft silicone spout, 25% higher flow rate and "chirp" free hydration. Easy drinking and no whistling sound!

Klean Kanteens are made from high quality, 18/8, food-grade stainless steel; totally free of BPA and other toxins. Because stainless steel itself is safe, we don't need to coat the inside of the bottle with a plastic or epoxy lining, one of the main differences from aluminum bottles. Stainless caps are also available and all of our caps are BPA-free.

Kanteen Classic Testimonial
  • Sport Cap 3.0 features a soft silicone spout, 25% higher flow rate and "chirp" free hydration
  • No BPA, phthalates, lead, or other toxins
  • 18/8 food-grade stainless steel, no liner
  • Doesn't retain or impart flavors
  • Rounded corners are easy to clean with no hard angles where dirt or bacteria can stick
  • Stainless steel threads
  • Fits large ice cubes
  • BPA-free polypropylene (pp#5) caps
  • Stainless accessory caps available
  • Dishwasher safe (handwash painted bottles)
  • Lifetime warranty
BPA FreeDishwasher Safe18/8 Stainless SteelLifetime Warranty
  • Capacity: 40 fluid ounces (1182 ml)
  • Weight: 9.375 ounces (w/o cap)
  • Size: 9.25” H (w/o cap) x 3.5” W
  • Opening diameter: 1.75" (44 mm)
  • 18/8 food-grade stainless steel
  • Sport Cap is leak resistant but NOT leakproof
  • Visit Kanteen 101 for more details
NOT Leakproof
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.

Online Reviews:

Customer Quotes:

"I have a klean kanteen – easy to clean, didn't dent as other stainless steel bottles have, and has a nice wide opening!" - Melinda

"These are the best water bottles money can buy. I have several and they have gone with me all over the world!" - Jeff

"I have a red 40oz with the sport cap 2.0 that I use for work. People think I'm walking around with a fire extinguisher. So, thanks for that, ha ha! Great bottle though." - Steve

"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

  • All Stainless Loop Cap
  • Pint Cup
  • 40oz Kanteen Wide
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