How the Greens Steel Beast Tumbler Compares to Other Tumblers in 2025
Featured: 42 oz Sky Blue Beast Tumbler
Your Search for the Best Stainless Steel Tumbler Ends Here
As there are quite a few options in the portable insulated tumblers market available these days, it’s understandable that you may still be on the fence about which travel tumbler truly reigns supreme.
You’ve probably been doing some research to discover which stainless steel tumbler is the best for all your adventures, no matter how intrepid they are...
If you're tired of scrolling through a sea of overpriced big brand names, second-rate knockoffs, or tumblers with little-to-no real reviews from others who can vouch for their quality; We're here to help you end your search.
Here’s why the Greens Steel BEAST is still the ultimate choice when compared to other reusable tumblers on the market in 2025...
Topics Covered in This Guide
Featured: Beast Tumblers
5. The Beast is Crafted From 18/8 Stainless Steel
For those unfamiliar with the stainless steel options on the market, it may come as a surprise that not all stainless steel is created equal. There are several different types of food-grade stainless steels that manufacturers can choose from, but Greens Steel refused to cut any corners on quality and expense during the creation of the BEAST Tumbler.
That’s why the Beast tumbler’s design is composed of 18/8 stainless steel, a high-quality food-grade metal made from 18% chromium and 8% nickel.
This combination makes it highly resistant to rust, corrosion, and staining—perfect for products that come in contact with food and beverages. It’s durable, non-reactive, and doesn’t retain flavors or odors, making it the gold standard for reusable drinkware.
Other Tumblers
Other tumblers on the market use standard Stainless Steel, which is softer, less durable, and can easily pick up scratches and dents. Many drinkware manufacturers also use Aluminum in their tumbler's construction, which leads to a host of other potential health hazards.
Featured: Beast Tumblers
4. The Beast is BPA-Free
Research has shown that harmful BPAs can actually leach out of drinkware into the water you drink, exposing you to its harmful effects and posing serious health risks such as cancer, hormonal disruptions, reproductive issues, neurological conditions, and diabetes.
BPA also has an immense environmental impact. When it contaminates waterways, it disrupts ecosystems through its damaging effects to the reproductive systems of aquatic species, reptiles, and birds.
Greens Steel was founded on a passion for preserving the health of our families and the environment, so creating completely BPA-Free drinkware for our loved ones and yours was of paramount importance.
Other Tumblers
Other tumblers include BPA in their drinkware, either directly in the plastic used for their construction, or within an inner plastic liner that’s required in bottles and tumblers made from cheaper aluminum.
Aluminum is not a food-grade metal, thus when bottles are made from it, they require a plastic liner. This insulating layer can leach BPAs into your water, and if the plastic is scratched, you can also be exposed to the uncoated aluminum itself.
Featured: 42 oz / 50 oz Beast Tumbler
3. The Beast is the Best Value
Comparatively, each Beast is priced up to 40% less than its premium competitors and comes with a complimentary lifetime warranty.
Depending on your individual hydration or caffeination requirements, the BEAST is available in a variety of sizes and respective price points that’ll keep you sipping your cold drink or hot coffee happily, whilst going easy on your wallet too.
Each BEAST above 10 oz comes to you in a ready-to-go bundle, which includes:
- x1 leak-proof lid
- x2 stainless steel straws
- x1 straw cleaner
- All wrapped in a sleek gift box — at no extra cost!
Other Tumblers
- Comparatively, for the price and quality, The BEAST can’t be beat.
- Many don't come with warranties.
- Competitor's products are sold as the tumbler only, no extras.
Featured: 50 oz Beast Tumbler
2. The Beast Has Max Temperature Retention & Insulation
The BEAST is over-engineered and rigorously tested against other leading brands, to match or exceed the performance of competitors’ insulated tumblers. The end result? Drinks stay hot for 12 hours and cold for 24. Here’s how:
Double Wall Insulation
The thick double wall construction offers an additional layer of insulated air that separates your hot or cold drinks inside the tumbler from the elements surrounding you, allowing superior temperature retention for hours on end.
Copper Lining
This copper-lined double wall keeps your hot drinks hot, even in freezing winter temperatures; and your cold drinks icy and refreshing on the most scorching of summer days.
Vacuum Seal Lid
Combined with its double wall insulation, your tumbler enjoys a perfect vacuum insulated seal thanks to its Spill Resistant Closing Lid.
Other Tumblers
Many tumblers on the market claim to offer long-lasting insulation—but few actually deliver. Budget options often use single-wall construction or low-grade materials that result in rapid temperature loss. Even some premium-priced brands fall short when it comes to real-world performance due to:
- Thin or single-wall construction
- No copper lining
- Loose or basic lids
In short, if your tumbler is losing heat by lunchtime or your ice is melting before the afternoon, it’s probably not a Beast.
1. 80,000+ Reviews Can’t Be Wrong
We think by now you can fairly confidently put an end to your search for the best insulated tumbler right here.
But don’t take our word for it; the Greens Steel Beast is currently sitting on 80,000+ Amazon reviews and counting. Here’s what some of them say:
Behold the Beast
Boasting superior vacuum insulation for perfectly hot coffee, a nifty lid that prevents spills, super-tough premium finishes and a company whose mission statement revolves around the wellbeing of ourselves and the planet.
The Greens Steel BEAST Stainless Steel Tumbler undoubtedly takes the cake as the best travel tumbler on the market, with its incredible value for money, and a list of superior features that set it apart from its lesser counterparts.
Why not grab one for yourself and see what all the excitement is about?
Thanks for stopping by, until next time.
Jenn, Content Contributor
Greens Steel
Looking good
I have quite a few Beasts. I was given a Stanley mug as a gift. I’ve heard so much about Stanley mugs, but I want to tell you something. My Beasts are a whole lot better than the Stanley mugs. I take my Beast all over the place with me. They keep my water ice cold, it keeps my coffee hot and I don’t go anywhere without the beast. I always carry a beast with me. Thank you.
Leave a comment