Cnn Best Bottle Award For 2020, 2021, 2022 2023: Bottles Were Awarded The Best Water Bottle Three Years In A Row By Cnn Underscore. Our Rust-Proof And 100% Bpa-Free Stainless Steel Water Bottles Are Available In Four Sizes: 16 Oz, 21 Oz, 32 Oz, And 40 Oz. Is Here To Inspire You To Live A Healthy Life. | | Maximum Hot / Cold Temperature Retention: Using Our Premium Tempmax Copper-Coated Insulation, The Advanced Double Wall Vacuum Insulation Of The Water Bottle Keeps Liquids Cold For 24 Hours, Hot For 12 Hours, And Piping Hot For 6 Hours. | | Eco-Friendly, Certified B-Corp Safe: Is A Certified B Corporation And Has Removed Over 2,500,000+ Plastic Water Bottles From Oceans Worldwide And Planted 20,000 Trees. For Each Stein Water Flask Sold, Will Remove 1 Lb Of Ocean Plastic, Equivalent To Around 50 Plastic Bottles. | | Express Yourself With Size Color Options: Available In 16 Oz, 21 Oz, 32 Oz.