---
product_id: 48834350
title: "Beast Tumbler | Reusable Stainless Steel, Vacuum Insulated Cup | with + 2 Straws & Cleaning Brush | Double Wall Travel Flask Perfect for Hot or Iced Coffee | BPA Free (Matte Black, 30oz)"
brand: "greens steel"
price: "€ 37.34"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.ie/products/48834350-beast-tumbler-reusable-stainless-steel-vacuum-insulated-cup-with-2
store_origin: IE
region: Ireland
---

# Keeps drinks hot 4+ hrs 100% dishwasher safe Keeps drinks cold 24+ hrs Beast Tumbler | Reusable Stainless Steel, Vacuum Insulated Cup | with + 2 Straws & Cleaning Brush | Double Wall Travel Flask Perfect for Hot or Iced Coffee | BPA Free (Matte Black, 30oz)

**Brand:** greens steel
**Price:** € 37.34
**Availability:** ❌ Out of Stock

## Summary

> 🔥❄️ The Beast Tumbler: Dominate your day with drinks that stay perfect, wherever you go!

## Quick Answers

- **What is this?** Beast Tumbler | Reusable Stainless Steel, Vacuum Insulated Cup | with + 2 Straws & Cleaning Brush | Double Wall Travel Flask Perfect for Hot or Iced Coffee | BPA Free (Matte Black, 30oz) by greens steel
- **How much does it cost?** € 37.34 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/48834350-beast-tumbler-reusable-stainless-steel-vacuum-insulated-cup-with-2)

## 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

- • **Eco-Chic Bundle:** Includes 2 reusable steel straws + cleaning brush for zero-waste sipping.
- • **Effortless Cleaning:** Dishwasher safe so you spend less time scrubbing and more time living.
- • **Travel-Ready & Leakproof:** Splash-proof lid and durable design perfect for your on-the-go lifestyle.
- • **Premium 18/8 Stainless Steel:** Rust-proof, BPA-free, and built to last a lifetime.
- • **Unrivaled Temperature Control:** Lock in icy freshness or piping hot warmth all day long.

## Overview

The Beast Tumbler is a 30oz matte black, vacuum insulated stainless steel cup crafted from premium 18/8 food-grade 304 steel. Designed for professionals on the move, it keeps beverages hot for over 4 hours and cold for more than 24 hours. This BPA-free, condensation-resistant flask comes with two reusable steel straws, a cleaning brush, and a splash-proof lid, all dishwasher safe for ultimate convenience and eco-friendly living.

## Description

Beast Tumbler | Reusable Stainless Steel, Vacuum Insulated Cup | with + 2 Straws & Cleaning Brush | Double Wall Travel Flask Perfect for Hot or Iced Coffee | BPA Free (Matte Black, 30oz) : desertcart.co.uk: Home & Kitchen

Review: SEARCH NO FURTHER - I bought 2 of these, a 20 oz for my daughter to take to Uni and a 30 oz for myself (currently OOS). I don't often leave reviews, as a lot things these days are mediocre at best and crap at worst. Not these 'beasts'!!! They are amazing! The seal fits really well and is easy to put back on if you remove it for cleaning, as I do. It keeps cold drinks cold for over 24 hours and hot drinks...I had a hot chocolate in mine and forgot it had been made. 4 hours later it was still piping hot, to the point I left the lid open for it to cool down!! The eco friendly straws and cleaning brush are a bonus, you don't often get them included with flasks/mugs (my partner calls then cups, I say he's wrong and they're flasks, but hey, potato potaato 🤷‍♀️ I have bought numerous other brands, both from desertcart and other places, in a long search for the perfect flask. And now I have found it. The old saying "buy it cheap, but it twice" is definitely true, as is "you get what you pay for". I actually don't mind paying more, for a product that genuinely does what it claims to do. And this product does. I have a kitchen cupboard full of plastic ones, metal ones, some leak, some are impossible to get clean, some can't go in the dishwasher, some are going rusty....I'm sure you get the picture. These Beast tumblers are worth every penny. I've spent less on others, which ultimately leak and I've spent more on one "dishwasher safe" one that is going rusty around the top now. If you are looking for a high quality flask, that can keep your drinks both piping hot and freezing cold (I'm intrigued about the icecream idea from another review 🤔) THEN THIS IS THE PRODUCT YOU NEED. What's more, there are so many different colours, with colour co-ordinated lids, the whole family can have their own with no confusion over whose is whose. Can't recommend these highly enough 👌
Review: Excellent 👌🏻 - This Beast tumbler is amazing. Keeps my water ice cold. 900ml is a perfect size as well, not too big and not too small. Tested it for leaks by turning it upside down and shaking it. 100% leak proof. I haven't used it for a hot drink yet? Not sure I will as I mainly use it for my filtered water. Haven't used the the straws or straw cleaner either yet. Nice little extra to have nonetheless. Get one you won't be disappointed!

## Features

- NEW EXCLUSIVE VALUE BUNDLE: Our drinking thermos mugs offers you unrivalled value for money. Included in your purchase you'll receive: 2 unbreakable steel straws (1 curved + 1 straight), a free straw brush & 1 splash proof lid, all presented in a beautiful gift box. Choose a colour & size to suit you!
- BECAUSE QUALITY MATTERS: While other steel cups use a cheaper 201 steel finish; we've cut no corners to ensure you get the best. The BEAST is crafted from the finest 18/8 top food grade 304 rust-proof stainless steel. Perfect for hot or iced coffee, tea, cold water, juice, wine, beer, milkshake, or a smoothie.
- CLEAN WITH EASE & SAVE TIME: Unlike other steel tumblers, your BEAST mug is 100% dishwasher safe! (Because you have better things to do then scrubbing out old coffee or dried in smoothies!). Perfect for your travel, holiday, festival, golf, or hike, ideal for adults & kids!
- FOR THE PLANET: There is no excuse to buy plastic again. These modern reusable drinks cups are an environmentally friendly solution that protects you without harmful materials! Our products are made of 18/8 food-grade stainless steel & are BPA-free. Your cool drink will be kept fresh, without a metal taste, & odour-free.
- 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 | B01N96RJZW |
| Age Range Description | Adult |
| Best Sellers Rank | 5,878 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 22 in Insulated Tumblers |
| Brand | Greens Steel |
| Brand Name | Greens Steel |
| Capacity | 30 Fluid Ounces |
| Colour | Matte Black |
| Customer Package Type | Traditional packaging |
| Customer Reviews | 4.5 out of 5 stars 77,072 Reviews |
| Finish Type | Matte |
| Included Components | Handle, Lid, Straw |
| Item Dimensions W x H | 10.6W x 21.8H centimetres |
| Item Shape | Cylindrical |
| Item Type Name | Tumbler |
| Item Weight | 1.19 Pounds |
| Manufacturer | Greens Steel |
| Material | Stainless Steel |
| Material Features | Insulated |
| Material Type | Stainless Steel |
| Material Type Free | BPA Free |
| Number of Items | 1 |
| Occasion | Travel |
| Other Special Features of the Product | Condensation Resistant, Vacuum Insulated |
| Pattern | Solid |
| Product Care Instructions | Dishwasher Safe |
| Product Style | 900 ml |
| Recommended Uses For Product | Travel |
| Reusability | Reusable |
| Special feature | Condensation Resistant , Vacuum Insulated |
| Specific Uses For Product | Cold Drinks |
| Style | 900 ml |
| Theme | Letters |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** Greens Steel
- **Capacity:** 30 Fluid Ounces
- **Colour:** Matte Black
- **Material:** Stainless Steel
- **Special feature:** Condensation Resistant, Vacuum Insulated

## Images

![Beast Tumbler | Reusable Stainless Steel, Vacuum Insulated Cup | with + 2 Straws & Cleaning Brush | Double Wall Travel Flask Perfect for Hot or Iced Coffee | BPA Free (Matte Black, 30oz) - Image 1](https://m.media-amazon.com/images/I/61zwCdbY-UL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is the lid plastic?**
A: Yes, but the rest is stainless steel. Can't recommend this cup enough, it keeps drinks hot for hours and is really nice to drink from.

**Q: Can you put the straw through the lid?**
A: Yes, there is a slide opening, but not water tight when you use this option.

**Q: Does this fit in a car cup holder?**
A: Hi There, Thanks for reaching out to us. It will depend on the size of your cup holder. Please find the approximate 30oz BEAST measurements below, which can help you to determine if the tumbler will fit in your cup holder. Diameter :9.9 cm / 3.9 inchLength: 19.5 cm / 7.68 inchBottom diameter: 7.5 cm / 2.95 inch If you have any questions or concerns please do feel to get in touch with us directly,Have a great day, The Greens Steel Family :)

**Q: Could i put a fizzy drink in this?**
A: Wouldn’t recommend it. The lid barely copes with the pressure from the steam on a hot drink. A fizzy one may send it flying unless kept really still.

## Customer Reviews

### ⭐⭐⭐⭐⭐ SEARCH NO FURTHER
*by M***1 on 20 September 2025*

I bought 2 of these, a 20 oz for my daughter to take to Uni and a 30 oz for myself (currently OOS). I don't often leave reviews, as a lot things these days are mediocre at best and crap at worst. Not these 'beasts'!!! They are amazing! The seal fits really well and is easy to put back on if you remove it for cleaning, as I do. It keeps cold drinks cold for over 24 hours and hot drinks...I had a hot chocolate in mine and forgot it had been made. 4 hours later it was still piping hot, to the point I left the lid open for it to cool down!! The eco friendly straws and cleaning brush are a bonus, you don't often get them included with flasks/mugs (my partner calls then cups, I say he's wrong and they're flasks, but hey, potato potaato 🤷‍♀️ I have bought numerous other brands, both from amazon and other places, in a long search for the perfect flask. And now I have found it. The old saying "buy it cheap, but it twice" is definitely true, as is "you get what you pay for". I actually don't mind paying more, for a product that genuinely does what it claims to do. And this product does. I have a kitchen cupboard full of plastic ones, metal ones, some leak, some are impossible to get clean, some can't go in the dishwasher, some are going rusty....I'm sure you get the picture. These Beast tumblers are worth every penny. I've spent less on others, which ultimately leak and I've spent more on one "dishwasher safe" one that is going rusty around the top now. If you are looking for a high quality flask, that can keep your drinks both piping hot and freezing cold (I'm intrigued about the icecream idea from another review 🤔) THEN THIS IS THE PRODUCT YOU NEED. What's more, there are so many different colours, with colour co-ordinated lids, the whole family can have their own with no confusion over whose is whose. Can't recommend these highly enough 👌

### ⭐⭐⭐⭐⭐ Excellent 👌🏻
*by A***R on 21 January 2026*

This Beast tumbler is amazing. Keeps my water ice cold. 900ml is a perfect size as well, not too big and not too small. Tested it for leaks by turning it upside down and shaking it. 100% leak proof. I haven't used it for a hot drink yet? Not sure I will as I mainly use it for my filtered water. Haven't used the the straws or straw cleaner either yet. Nice little extra to have nonetheless. Get one you won't be disappointed!

### ⭐⭐⭐⭐⭐ Love my mug
*by R***N on 21 June 2025*

Great size & quality. Love the colour. The lid doesn’t crack like my old one. It’s okay to hold but I’m definitely going to buy a larger one with a handle for ease and use this one for my coffee. The steel straw is narrower than my other ones which is good as I add lemon to my sparkling water drinks and worry about it eroding my teeth with wider steel straws. I’ve only knocked it over once but the lid stayed on and minimal water escaped through the sip hole. The paint hasn’t chipped like my old one. It keeps my cold drinks perfectly cold. My hot drinks hot. My only regret is not buying a bigger one with a handle. If you have smaller hands, I’d recommend a handle one.

## Frequently Bought Together

- Beast 30 oz Tumbler Stainless Steel Vacuum Insulated Coffee Ice Cup Double Wall Travel Flask (Matte Black)
- Greens Steel Handle for 30 oz BEAST Tumbler Only | BEAST Tumbler Handle Anti Slip Travel Mug Grip | Beast Cup Holder | BEAST Tumbler Accessories | Lightweight Tumbler Holder | Cup Handle

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-12*