73,000+ Reviews


"Absolutely LOVE my Greens Steel Beast & handle. I put ice & my beverage in it before I leave for work & continue to refill my beverage throughout the day & 12 hours later, I still have ice in it, from the morning! Definitely going to order more!"

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Stainless Steel BEAST Tumbler

59,670 ratings

in Tumblers & Water Glasses

With Tritan Lid, Straws, and Straw Brush

Available in 20oz, 30oz


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Stainless Steel 

double wall
vacuum insulation

temp retention

cup holder


Included with every beast


Included with every beast

Stainless Steel
Straws (Set of 2)

Enjoy one bent and one curved straw sized to your BEAST, crafted from the same top-quality 18/8 stainless steel

Stainless Steel Cleaning Brush

Easily and effectively clean the stainless steel straws with an included wire brush designed for quick sanitation

Shatterproof Splash-Proof Lid

Made from BPA-Free Tritan plastics with a easy open-andclose lid that's the same color as your Beast

Matching Eco- Friendly Gift Box

All of these bonuses are packed alongside the Beast in a recyclable gift box that matches your tumbler

Our Customers Love Us

Jeanne P

I purchased the first one for my daughter and she uses it all day every day!! She loves it so much her daughter and sister both wanted one. We are a 3 “BEAST” family!!

Maribeth C

I love my Beast tumblers. They keep my drinks cold for hours. I also love that they are dishwasher safe. The handles are very convenient. I can’t wait until my 30 oz., handle arrives.



Game changer! I have tried many, many types of insulated cups to get me to drink more water. This one has succeeded! I have increased my water intake 100%!

Paula T


Best cups ever!!!! Keeps drinks hot or cold 😁 We keep these with us everywhere we go! You can’t go wrong with a Beast Green Steel!

An Eco-Friendly Ergonomic Tumbler That Lasts a Lifetime

The foundation of Greens Steel is simple; we provide endlessly reusable and incredibly durable drinkware that's built to last, friendly to the environment, and contains no BPA or harmful chemicals.

The Beast Tumbler was born from this mission, constructed with an indestructible 18/8 food grade stainless steel interior and a nosweat powder coated exterior. Inside and out, the Beast Tumbler is completely free of toxic chemicals to protect the health and wellbeing of our customers and the planet we all inhabit.

To give you the best possible tumbler imaginable, the Beast has been specially designed with double wall vacuum insulation, a unique structure that maintains the temperature of heated drinks for up to six hours and prolongs the preferred temperature of colder drinks for up to twelve hours.