---
product_id: 46562098
title: "BEAST Insulated Coffee Mug – 900 ml I Arctic White I Stainless Steel I Reusable, Insulated Cups I 2 Straws and Cleaning Brush, Double Walled Travel Coffee Thermos I Hot or Iced Coffee"
brand: "greens steel"
price: "¥8599"
currency: JPY
in_stock: true
reviews_count: 13
category: "Greens Steel"
url: https://www.desertcart.jp/products/46562098-beast-insulated-coffee-mug-900-ml-i-arctic-white-i
store_origin: JP
region: Japan
---

# Double-walled insulation for hot or iced Includes cleaning brush & 2 reusable straws Keeps drinks cold for hours BEAST Insulated Coffee Mug – 900 ml I Arctic White I Stainless Steel I Reusable, Insulated Cups I 2 Straws and Cleaning Brush, Double Walled Travel Coffee Thermos I Hot or Iced Coffee

**Brand:** greens steel
**Price:** ¥8599
**Availability:** ✅ In Stock

## Summary

> 🔥 Sip like a boss, stay cool (or hot) all day! ❄️

## Quick Answers

- **What is this?** BEAST Insulated Coffee Mug – 900 ml I Arctic White I Stainless Steel I Reusable, Insulated Cups I 2 Straws and Cleaning Brush, Double Walled Travel Coffee Thermos I Hot or Iced Coffee by greens steel
- **How much does it cost?** ¥8599 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/46562098-beast-insulated-coffee-mug-900-ml-i-arctic-white-i)

## Best For

- greens steel enthusiasts

## Why This Product

- Trusted greens steel brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek, Sweat-Free Design:** Powder-coated exterior stays vibrant and grip-friendly without condensation ruining your desk or car.
- • **Eco-Friendly Bonus Bundle:** Comes with 2 unbreakable metal straws and a cleaning brush, reducing single-use waste in style.
- • **Leak-Resistant Pop-Up Lid:** Innovative splash-proof lid seals tight for worry-free travel and easy cleaning.
- • **Unrivaled Temperature Retention:** Keeps your coffee hot or iced drinks cold all day long with advanced double-wall insulation.
- • **Premium 304 Stainless Steel Build:** Crafted from food-grade 18/8 stainless steel for durability and pure taste—no rust, no flavor transfer.

## Overview

The BEAST Insulated Coffee Mug is a 30oz premium stainless steel tumbler designed for professionals on the move. Featuring double-wall insulation, it keeps beverages hot or cold for hours while its durable 304 18/8 food-grade steel construction ensures no rust or flavor contamination. The mug includes two reusable metal straws and a cleaning brush, promoting sustainability. Its sleek, powder-coated finish resists scratches and sweat, and the leak-resistant pop-up lid offers secure, spill-free use—perfect for busy millennials who demand style, function, and eco-consciousness in their daily hydration.

## Description

WHY GREENS STEEL We are proud to provide our customers with enviro-friendly products using only the highest quality materials. OUR STORY Here at Green’s Steel, we are proud to provide our customers with enviro-friendly products using only the highest quality materials. Our small and passionate team pay close attention to functionality and durability. We’re passionate about what we do and want to rid the world of single-use waste! OUR STORY Here at Green’s Steel, we are proud to provide our customers with enviro-friendly products using only the highest quality materials. Our small and passionate team pay close attention to functionality and durability. We’re passionate about what we do and want to rid the world of single-use waste! Stainless Steel Drinkware What makes our products unique? All our drink-ware is made from premium food grade 18/8 stainless steel and comes in recyclable packaging to minimise any waste. From the smallest 10oz cups to our 40oz BEAST tumblers, you can be assured you are receiving safe, beautifully crafted quality products. What problem are we solving? Good for us - good for our planet :) We believe that quality products should be affordable. It just makes sense as sustainably is at the core of what we do. That way we spend less, waste less and it’s better for the environment. What makes our products unique? All our drink-ware is made from premium food grade 18/8 stainless steel and comes in recyclable packaging to minimise any waste. From the smallest 10oz cups to our 40oz BEAST tumblers, you can be assured you are receiving safe, beautifully crafted quality products. What problem are we solving? Good for us - good for our planet :) We believe that quality products should be affordable. It just makes sense as sustainably is at the core of what we do. That way we spend less, waste less and it’s better for the environment.

Review: Keeps water cold for a very long time, lid seal is tight, versatile (swig or straw), easy to clean - I am typical: I have to have my large tumbler with me at all times. I had purchased this same model a few years ago, but I dropped it on the driveway last week, and the plastic flip closure on the lid broke. I did find a replacement lid, but then I thought it would be a good time to get a second tumbler for my car, so I don't have to carry it to and from the house every single time I drive somewhere. This is by far the best 40oz tumbler I've ever tried. First, it fits in my car cupholder without any inserts or converters (not true of some other brands). Second, it is lighter weight than some of the competitors. Third, and most importantly, my water stays cold for a VERY long time in this tumbler; water gets warm much more quickly in the 40oz "Y" brand version I tried. I think the flip closure on this brand's lid is what does the trick so well: it snaps very snugly over the mouth hole, and in the process, it inserts a pin in the airhole, sealing the cup very well. That closure also makes it nearly leak proof, at least for casual use. This is also a much more versatile tumbler. The mouth hole is large enough to give me a good swig every time, or I use one of its metal straws in the car to make it safer for drinking and driving. The 40oz version of that other brand only offers a straw opening, which is very limiting to me. I tried their 30oz version, which has their standard lid, but that doesn't keep the water cold for very long, and it's much heavier. The lid for this tumbler fits snugly in place via a rubber seal ring. There's a lip on the lid to help you remove it (it does take a strong hand, since it fits so well). I used my first lid for at about 2 years, opening/closing it at least 2-3 times a day, and it had only just begun to get a bit looser. The finish on this tumbler is of very nice - very hard to scratch the surface, and it holds its color very well over time. It does not sweat even in our warm summers (high 90's). The metal ring at the top is well-attached and will not come off. The inside of the tumbler is easy to clean with warm water and soap. I use a separate handle, to make it easier to grab and hold, but it's certainly not difficult to pick up as is, if you hold it at the point where the cup starts to get wider. The tumbler comes with 2 metal straws and a straw cleaner - a really nice touch, so you are environmentally conscious (metal straw) with an easy way to keep it clean. We keep several of these brushes handy, so I'm not sure how well this particular one holds up (it got mixed in with the others, we can't distinguish it). But we know at least that it holds up, since the original one is still in rotation from 2 years ago. Finally, quality does NOT have to equate to high price. This tumbler is regularly about 2/3 the cost of the competition I've mentioned, with higher functionality and versatility.
Review: BEST TUMBLER YET - This is by far one of the best tumblers I've had. It's lightweight, it holds cold really well. When I said really well I mean REALLY REALLY WELL! I had it full of ice in my car in the Texas heat for 2 hrs and the ice remained. Outside was burning hot but the inside stayed cold! This is the best $35 I've spend.

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074L7JM49 |
| Age Range Description | Adult |
| Best Sellers Rank | #1,513 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #34 in Insulated Tumblers |
| Brand | Greens Steel |
| Brand Name | Greens Steel |
| Capacity | 30 Fluid Ounces |
| Color | Arctic White |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.6 out of 5 stars 81,330 Reviews |
| Finish Types | Brushed |
| Included Components | Brush, Lid, Straw, Tumbler |
| Is the item dishwasher safe? | Yes |
| Item Dimensions W x H | 4.29"W x 4.21"H |
| Item Type Name | Glass |
| Item Weight | 425 Grams |
| Manufacturer | Greens Steel |
| Manufacturer Part Number | 30ozbeastwhite |
| Material | Stainless Steel |
| Material Features | Insulated |
| Material Type | Stainless Steel |
| Material Type Free | BPA Free |
| Model Number | 30ozbeastwhite |
| Number of Items | 1 |
| Occasion | Travel |
| Other Special Features of the Product | Insulated |
| Pattern | Solid |
| Product Care Instructions | Hand Wash Only, Machine Wash |
| Product Style | Modern |
| Recommended Uses For Product | Travel |
| Reusability | Reusable |
| Set Name | Beast |
| Shape | Round |
| Size | 30 Ounces |
| Special Feature | Insulated |
| Specific Uses For Product | Cold Drinks, Hot Drinks |
| Style | Modern |
| Theme | Vehicle |
| Unit Count | 1.0 Count |

## Images

![BEAST Insulated Coffee Mug – 900 ml I Arctic White I Stainless Steel I Reusable, Insulated Cups I 2 Straws and Cleaning Brush, Double Walled Travel Coffee Thermos I Hot or Iced Coffee - Image 1](https://m.media-amazon.com/images/I/615PEsyQP1L.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Keeps water cold for a very long time, lid seal is tight, versatile (swig or straw), easy to clean
*by O***S on February 4, 2024*

I am typical: I have to have my large tumbler with me at all times. I had purchased this same model a few years ago, but I dropped it on the driveway last week, and the plastic flip closure on the lid broke. I did find a replacement lid, but then I thought it would be a good time to get a second tumbler for my car, so I don't have to carry it to and from the house every single time I drive somewhere. This is by far the best 40oz tumbler I've ever tried. First, it fits in my car cupholder without any inserts or converters (not true of some other brands). Second, it is lighter weight than some of the competitors. Third, and most importantly, my water stays cold for a VERY long time in this tumbler; water gets warm much more quickly in the 40oz "Y" brand version I tried. I think the flip closure on this brand's lid is what does the trick so well: it snaps very snugly over the mouth hole, and in the process, it inserts a pin in the airhole, sealing the cup very well. That closure also makes it nearly leak proof, at least for casual use. This is also a much more versatile tumbler. The mouth hole is large enough to give me a good swig every time, or I use one of its metal straws in the car to make it safer for drinking and driving. The 40oz version of that other brand only offers a straw opening, which is very limiting to me. I tried their 30oz version, which has their standard lid, but that doesn't keep the water cold for very long, and it's much heavier. The lid for this tumbler fits snugly in place via a rubber seal ring. There's a lip on the lid to help you remove it (it does take a strong hand, since it fits so well). I used my first lid for at about 2 years, opening/closing it at least 2-3 times a day, and it had only just begun to get a bit looser. The finish on this tumbler is of very nice - very hard to scratch the surface, and it holds its color very well over time. It does not sweat even in our warm summers (high 90's). The metal ring at the top is well-attached and will not come off. The inside of the tumbler is easy to clean with warm water and soap. I use a separate handle, to make it easier to grab and hold, but it's certainly not difficult to pick up as is, if you hold it at the point where the cup starts to get wider. The tumbler comes with 2 metal straws and a straw cleaner - a really nice touch, so you are environmentally conscious (metal straw) with an easy way to keep it clean. We keep several of these brushes handy, so I'm not sure how well this particular one holds up (it got mixed in with the others, we can't distinguish it). But we know at least that it holds up, since the original one is still in rotation from 2 years ago. Finally, quality does NOT have to equate to high price. This tumbler is regularly about 2/3 the cost of the competition I've mentioned, with higher functionality and versatility.

### ⭐⭐⭐⭐⭐ BEST TUMBLER YET
*by N***Y on June 1, 2026*

This is by far one of the best tumblers I've had. It's lightweight, it holds cold really well. When I said really well I mean REALLY REALLY WELL! I had it full of ice in my car in the Texas heat for 2 hrs and the ice remained. Outside was burning hot but the inside stayed cold! This is the best $35 I've spend.

### ⭐⭐⭐⭐⭐ Beast vs. Stanley
*by C***S on February 28, 2026*

I can’t say enough about this cup. I bought it January 2023 and it’s January 2026 now. I got a Stanley for my birthday as a gift so I compared the two. My $30 dollar rainbow beast to the $50 Stanley glitter bomb. The quality is absolutely amazing on both cups my drink is cold and still has ice after 14 hours I haven’t tested for hot in my 40oz but I have the 20 and it keeps my coffee hot through lunch. I love the design and colors offered on beast the rainbow is my favorite. The beast tumbler is lighter than the Stanley and I prefer the removable cuff handle that I have for the beast tumbler. Car cup holder though the Stanley was a better fit but it’s really tall. My beast fits in the cupholder if I had the coaster in the bottom of the cup holder so eh not a big deal. The one thing I like the Stanley over the beast is the lid. The beast has an opening so that you can use it with or without a straw so bugs can get in hair/dust while the Stanley is closed top 100%. I love both cups but for quality and bang for your buck beast is the winner.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-04*