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Beast 40 oz Tumbler Stainless Steel Vacuum Insulated Coffee Ice Cup Double Wall Travel Flask (Rainbow)

  • Based on 80,154 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Oct 6
Order within 14 hours and 53 minutes
Available payment plans shown during checkout

Size: 40 Ounces


Color: Rainbow


Features

  • BIGGER & BETTER NEW HUGE 40oz BEAST has arrived! Offering unprecedented capacity. Now hold even more of your favorite beverage at the perfect temperature for longer!
  • EXCLUSIVE BONUS BUNDLE - Offering unrivaled value for money: 2 unbreakable straws: 1 curved; great for water + 1 wider & straight; ideal for shakes & smoothies + a straw brush & our upgraded pop up lid for super easy cleaning! Presented in a beautiful Gift Box. With so many second-rate tumblers available on the market we wanted to set ourselves apart and be the best!
  • #1 INSULATION & TEMPERATURE RETENTION - Over engineered and tested against leading brands. Our Tumblers match performance all day long and with our splash proof closable lid you can keep your drinks insulated and protected for longer!
  • #1 SUPERIOR FINISHING INSIDE & OUT - Made only from the Highest Quality Premium 304 18/8 Food Grade Stainless Steel. Our colored tumblers are powder coated for a Long-lasting finish. An electro-polished interior will ensure your cups remain pure, imparting NO unwanted flavors, giving you a clean tasting drink every time!
  • 100% SATISFACTION - Enough of the cheap plastic & second rated tumblers on offer. We know you deserve the best and that's why our products and service is second to none. All Greens Steel Products come with 100% Satisfaction or well refund your purchase price instantly. Order now and put us to the test! Don't settle for any less.

Brand: Greens Steel


Color: Rainbow


Special Feature: Ergonomic


Style: Modern


Theme: Rainbow


Brand: Greens Steel


Color: Rainbow


Special Feature: Ergonomic


Style: Modern


Theme: Rainbow


Recommended Uses For Product: Travel


Included Components: Brush, Lid, Straw


Specific Uses For Product: Cold Drinks


Shape: Conical


Pattern: Solid


Product Care Instructions: Machine Wash


Age Range (Description): Adult


Material Feature: Insulated


Reusability: Reusable


Unit Count: 1.0 Count


Item Weight: 599 Grams


Product Dimensions: 4.59"W x 9"H


Number of Items: 1


Customer Package Type: gift box


Finish Type: Smooth


Manufacturer: Greens Steel


Manufacture Year: 2022


Size: 40 Ounces


Item Weight: 1.32 pounds


Item model number: HU-XI-201


Is Discontinued By Manufacturer: No


Date First Available: June 20, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Oct 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Impressive, like Fort Knox!
Size: 42 Ounces Color: Stormy Sky Blue
I just got this flask today and I can tell it is going to be awesome. I love the color (I chose Stormy Sky Blue). It is huge, but not unmanageable and fits all the coffee my coffee maker makes into it. I pour it over ice for a nice iced coffee. It keeps it nice and cold. The straight straw is wide and works great. I love the way the whole thing looks. I am going to enjoy this coffee mug for a long, long time! What a Beast! ... show more
Reviewed in the United States on August 3, 2025 by Jim Bures Jim Bures

  • Great purchase, would buy again!
Size: 50 Ounces Color: Stormy Sky Blue
Love it!! Next day still has ice in it. Helps me get my daily water intake. Good quality, nice color. Easy to fill.
Reviewed in the United States on August 31, 2025 by Peggy Martinez

  • Love the tumblers
Size: 20 Ounces Color: Stormy Sky Blue
Classy looking and keep liquid hot for a long time or cold for a long time. The lids are not dishwasher safe they will crack but you can buy replacement lids. Love my cups.
Reviewed in the United States on September 13, 2025 by Or desk organizer

  • Great quality
Size: 20 Ounces Color: Sand
Love it! Easy to clean, keeps liquids cool and you can take it anywhere.
Reviewed in the United States on September 14, 2025 by Jackelyne Mere

  • Nice but not perfect without a built-in handle.
Size: 30 Ounces Color: Deep Purple
This is a quality product. Lots of nice colors to pick from. Fits in our car's cup holder. Keeps hot drinks hot and cold things cold. Dishwasher safe. Fits under our frig's water dispenser. But it does not have a handle. A major flaw for our family. So, we bought the handle that you can slip on to it. Too bad that it does not work. It slips down. Not what you want when you go to grab it out of the cup holder in the car. So, the tumbler and the added handle go back. Reason for a star missing. The hunt begins again for all perfect water/coffee tumbler for our family. ... show more
Reviewed in the United States on August 17, 2025 by D. Johnson, WA

  • Quality and comfort
Size: 42 Ounces Color: Stormy Sky Blue
Very nice quality cup, fit well in to car cupholders. Drink stayed chilled even on a hot beach. Did not leak from the lid or anything. Great pricing too, and seems more durable than the current popular similar name brand item.
Reviewed in the United States on July 13, 2025 by Michael Rogers

  • Cold all day long.
Size: 42 Ounces Color: Army Green
As a teacher, this has kept my beverage cold the entire school day, even without ice in it. Size is great, about 2 bottles of water fit in it. Sturdy and enjoy the color. One of my most enjoyable purchases this year.
Reviewed in the United States on September 19, 2025 by Josh

  • Finally, a perfect replacement and upgrade for my favorite mug.
Size: 20 Ounces Color: Stainless Steel
I have been using the same 20-oz Aladdin mug I received as a Freshmen Orientation gift in college for the past 23 years. I have been somewhat nervous about my practice of drinking out of a mid-90's, frequently dishwashed plastic mug (most certainly NOT BPA free), but I never found a replacement mug I liked. I had tried using other metal mugs (the kind you get as freebies at conferences or sports events), but was frustrated by the sliders which trapped liquids and couldn't be cleaned (I drink homemade lattes daily, and trapped milk goes rancid before I even leave work for the day), and the mugs couldn't hold up in the dishwasher - a leak would always develop, usually in the base, and you could hear water sloshing around inside the "vacuum-sealed" mug. Additionally, these mugs were always 16 oz or smaller. I know that 4 oz doesn't seem like a lot, but I would always notice a difference when I ran out of coffee before I expected to. I decided it was time to find a replacement for my favorite mug. I wanted something dishwasher safe (that wouldn't develop a leak in the mug if washed and had a lid that was able to be easily fully disassembled and reassembled for thorough cleaning). It needed to be BPA-free, non-reactive (I use Essential Oils in my water, and would like to use them in my mug, which I couldn't do before, as they can react with plastic and aluminum, but are safe with stainless steel and glass), spill resistant (my Aladdin mug had open holes with no slider), insulated for hot and cold, fits in a standard automotive cup holder (my old mug was too big, but fit nicely into the center console of my mid-90's Outback (it's like they were MADE for each other!)) and had to hold 20 oz. The BEAST has fit the bill to a T. I have only had this mug for two days, and have only used the mug with the seal-able lid. My coffee stays hot until I have finished drinking it (which can be a few hours while I work at my desk). When my coffee is done, I can easily take everything apart and thoroughly rinse the mug and lid and refill with ice water with no lingering coffee flavor. I anticipate it will take a little to get used to drinking through a stainless steel straw, but I am VERY happy that this was included. A stainless steel straw will allow me to use this mug with essential oils, as I will be able to keep the oils away from the plastic lid by sipping through the non-reactive straw. An unexpected feature was the nose guard on the slider of the lid. I have had the experience with past mugs with sliders that, when I go to sip my beverage, the little tiny hole which is provided to allow air to enter the mug to replace the liquid coming out gets covered up and sealed by the tip of my nose as I drink, slowing or stopping the flow of the beverage through the drinking hole. This mug has a raised section which protects the air hole without preventing air from entering it. It is a little thing, but something I notice (with relief) every time I take a sip. The exterior of the mug is more compact than I expected, which is great. However, for some reason, it feels larger than it looks when I hold it. I have somewhat small hands (I wear Men's S or XS gloves/ Women's S or M depending on the style), and am finding myself holding the mug closer to the base for a better grip. I read the reviews from other customers and one of the tipping points for my decision to buy the BEAST was the customer service reputation from Greens Steel. I have received two emails from Greens Steel so far, checking in on my purchase to make sure I am satisfied and to let me know that they are available to help if I have any questions or encounter any issues with my mug. The reviews from the other customers make me feel like this concern and customer engagement is genuine and heartfelt, and as a result, I won't hesitate to get in touch with Greens Steel with any question I have, if necessary. ... show more
Reviewed in the United States on January 10, 2018 by Kimberly Wendelin

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