Beast 20 oz Tumbler Stainless Steel Vacuum Insulated Coffee Ice Cup Double Wall Travel Flask (Rainbow)
Condition: New
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To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Mar 12 – Mar 13
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Size: 20 Ounces
Color: Rainbow
Features
- 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 PREMIUM QUALITY - While other steel tumblers out there may use a cheaper 201 steel finish; we've cut no corners! Made only from the Highest Quality Premium 304 18/8 Food Grade Stainless Steel.
- #1 SUPERIOR FINISHING INSIDE & OUT - Your tumbler will always feel smooth to the touch with a sweat-free design, and will keep its stylish colorful finish due to its long-lasting powder coating. No rust or scratches like painted exteriors. An electro-polished interior will ensure your cups remain pure, imparting NO unwanted flavors, giving you a clean tasting drink every time!
- TOP QUALITY & 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. Every Greens Steel Product is backed by our commitment to your complete satisfaction. Order now and put us to the test! Don't settle for any less.
Brand: Greens Steel
Color: Rainbow
Special Feature: Insulated
Style: 20oz
Theme: Sports
Brand: Greens Steel
Color: Rainbow
Special Feature: Insulated
Style: 20oz
Theme: Sports
Recommended Uses For Product: Travel
Included Components: Brush, Lid, Straw
Specific Uses For Product: Cold Drinks, Hot Drinks
Shape: Round
Pattern: Solid
Product Care Instructions: Dishwasher Safe
Age Range (Description): Adult
Material Feature: Insulated
Reusability: Reusable
Unit Count: 1.0 Count
Item Weight: 420 Grams
Product Dimensions: 3.7"W x 3.7"H
Material Type Free: BPA Free
Number of Items: 5
Customer Package Type: Standard Packaging
Finish Type: Textured/Matte
Manufacturer: Greens Steel
Size: 20 Ounces
Item Weight: 14.8 ounces
Item model number: 20ozrainbow
Is Discontinued By Manufacturer: No
Date First Available: June 22, 2021
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Mar 12 – Mar 13
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
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!
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Reviewed in the United States on August 3, 2025 by Jim Bures Jim Bures
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
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
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
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.
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Reviewed in the United States on August 17, 2025 by D. Johnson, WA
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
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
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.
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Reviewed in the United States on January 10, 2018 by Kimberly Wendelin