---
product_id: 401480029
title: "Kaave Thermo Bottle “bigBoy“ - 1l, 1.2l | Stainless Steel Flask for Hot Drinks | Vacuum Insulated with 2 Cups - BPA Free | Perfect for Hot Coffee & Tea Outdoor, Camping Work - Everywhere"
brand: "kaave"
price: "€ 30.49"
currency: EUR
in_stock: true
reviews_count: 7
url: https://www.desertcart.com.cy/products/401480029-kaave-thermo-bottle-bigboy-1l-1-2l-stainless-steel-flask
store_origin: CY
region: Cyprus
---

# Leak-proof screw cap for zero spills 1L+ capacity for all-day hydration Vacuum insulated for max temperature retention Kaave Thermo Bottle “bigBoy“ - 1l, 1.2l | Stainless Steel Flask for Hot Drinks | Vacuum Insulated with 2 Cups - BPA Free | Perfect for Hot Coffee & Tea Outdoor, Camping Work - Everywhere

**Brand:** kaave
**Price:** € 30.49
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay fueled, stay social with bigBoy – your ultimate hydration sidekick!

## Quick Answers

- **What is this?** Kaave Thermo Bottle “bigBoy“ - 1l, 1.2l | Stainless Steel Flask for Hot Drinks | Vacuum Insulated with 2 Cups - BPA Free | Perfect for Hot Coffee & Tea Outdoor, Camping Work - Everywhere by kaave
- **How much does it cost?** € 30.49 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/401480029-kaave-thermo-bottle-bigboy-1l-1-2l-stainless-steel-flask)

## Best For

- kaave enthusiasts

## Why This Product

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

## Key Features

- • **Eco-Friendly & Safe:** BPA, BPS, and plasticizer-free materials for guilt-free sipping
- • **Ergonomic Grip, No Slip Ups:** Stable design with an ergonomic handle for confident carrying anywhere
- • **Hot or Cold, Always Perfect:** Vacuum insulation keeps beverages piping hot or refreshingly cold for hours
- • **Double the Cups, Double the Share:** Includes 2 BPA-free cups so you never drink alone
- • **Built to Last, Designed to Impress:** Premium 18/8 food-grade stainless steel with shatterproof durability

## Overview

The Kaave Thermo Bottle “bigBoy” is a robust 1L stainless steel vacuum flask designed for professionals on the go. Featuring double BPA-free cups, leak-proof screw cap, and ergonomic handle, it ensures your hot coffee or tea stays fresh and spill-free during work, outdoor adventures, or camping. Crafted from premium 18/8 food-safe stainless steel, it offers durability, temperature retention, and eco-conscious safety in a sleek, stable design.

## Description

Stainless steel is one of the most robust and reliable materials in the world. Sounds familiar? You are looking for a reliable vacuum flask to take to work? One cup offered by other flasks is simply not enough for you? You always struggle with the flask slipping out your hands? You have to replace your vacuum flasks at least every half a year? Other flasks cups are so tiny that for you they are enough for just one sip? Forget all your frustrations - KAAVE has a perfect solution for you! bigBoy by KAAVE is the perfect solution to always have your refreshing beverages with you, and, what’s more, to share them with your family or colleagues. Because sharing is caring . We combined reliable, 100 Percent safe materials in a functional elegant design with your needs in mind - durability, sustainability, high capacity. Your advantages! Premium 18/8 food safe stainless steel Enjoy your drinks hot or cold - whichever rocks your boat Functional design - ergonomic handle and 2 cups included from BPA, BPS & plasticizers High durability Leak proof thanks to the screw cap Environment friendly Shatterproof No accompanying metal odour or taste Only shortly available at a discount price! Choose mobile reliability, and add bigBoy to your basket .

## Features

- Leak-proof, stable

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Kaave |
| Model Number | HU-XI-201 |
| Colour | Onyx Black | Black | Robust Matt |
| Product Dimensions | 11 x 11 x 30.8 cm; 790 g |
| Capacity | 1000 Millilitres |
| Material | Stainless Steel |
| Special Features | Leak-proof, stable |
| Item Weight | 790 g |

## Product Details

- **Brand:** Kaave
- **Capacity:** 1000 Millilitres
- **Colour:** Onyx Black | Black | Robust Matt
- **Recommended uses for product:** Coffee, Tea
- **Special feature:** Leak-proof, stable

## Images

![Kaave Thermo Bottle “bigBoy“ - 1l, 1.2l | Stainless Steel Flask for Hot Drinks | Vacuum Insulated with 2 Cups - BPA Free | Perfect for Hot Coffee & Tea Outdoor, Camping Work - Everywhere - Image 1](https://m.media-amazon.com/images/I/41+a0vxt3jL.jpg)
![Kaave Thermo Bottle “bigBoy“ - 1l, 1.2l | Stainless Steel Flask for Hot Drinks | Vacuum Insulated with 2 Cups - BPA Free | Perfect for Hot Coffee & Tea Outdoor, Camping Work - Everywhere - Image 2](https://m.media-amazon.com/images/I/61TglbP+GtL.jpg)
![Kaave Thermo Bottle “bigBoy“ - 1l, 1.2l | Stainless Steel Flask for Hot Drinks | Vacuum Insulated with 2 Cups - BPA Free | Perfect for Hot Coffee & Tea Outdoor, Camping Work - Everywhere - Image 3](https://m.media-amazon.com/images/I/5127f-nZGjL.jpg)
![Kaave Thermo Bottle “bigBoy“ - 1l, 1.2l | Stainless Steel Flask for Hot Drinks | Vacuum Insulated with 2 Cups - BPA Free | Perfect for Hot Coffee & Tea Outdoor, Camping Work - Everywhere - Image 4](https://m.media-amazon.com/images/I/51FoCuXMUAL.jpg)
![Kaave Thermo Bottle “bigBoy“ - 1l, 1.2l | Stainless Steel Flask for Hot Drinks | Vacuum Insulated with 2 Cups - BPA Free | Perfect for Hot Coffee & Tea Outdoor, Camping Work - Everywhere - Image 5](https://m.media-amazon.com/images/I/71r-bZ8YwXL.jpg)

## Available Options

This product comes in different **Colour Name, Size Name** options.

## Questions & Answers

**Q: Is this good for soups and stuff?**
A: Definitely.
I use it mostly for coffee and tea, surely it's ideal for soups and stuff. It keeps anything hot for a long time. 
I strongly recommend it.

**Q: Can  this flask hold two pints**
A: No, unless you define 'pint' as 500ml as bars in Paris do ;)

**Q: What is the Warranty on the product?**
A: Haven’t a clue, had it a couple of years and found it excellent

**Q: How long is the guarantee please**
A: I wouldn't worry about a guarantee, the only way that thing will get damaged is if you drive over it in a tank.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Do yourself a favour buy one.
*by T***D on 20 August 2020*

Well I’ve had this for two weeks now and have to say it certainly works well, you fill it with boiling water and 12 hours later it’s still steaming hot enough to make tea with, many other reviews here contain testimonies of this flask’s heat retaining properties, so far they seem correct, it is definitely superior to my previous steel flask. It’s one litre capacity is perfect for a day out and two cups saves carting a spare for Mrs Timelord.However, performance in real life is what matters. In the morning I fill it with coffee, add cold milk (when I used it for the first time, I made the mistake of adding hot milk but found it too hot to drink when I poured it). First cup of coffee at 8am, last cup of coffee at 5pm - still steamy hot.To sum up: this flask looks good, has a nice big easy to grab handle, two good sized cups and keeps liquids hot/cold all day. Do yourself a favour buy one. Update: So six months later, I have been using flask 5 days a week for work and occasional days out at weekends (lockdowns permitting). It's a real thermal work horse still keeping my drinks hot all day long, and no bits have broken, cracked or dropped off it. Great product. I'll update in another six months.☺ August 2021 - another six months later and its still going strong! :)Update: October 2022 - I’ve had my Kaave flask for two years now and still use it 5 days a week, the only problem I’ve had is the stopper seal split when I removed it for cleaning. I emailed Kaave asking if I could purchase another, they had none in stock, so they sent me a complete stopper instead, free of charge, great customer service! I note the seals are now available as kits (search Amazon for ‘Kaave Gasket for Big boy Spare Parts’), so I’ve since purchased some spares.The ‘metal’ cup is showing a few dings and scuffs but other than that my flask is still performing perfectly. Any tannin build-up in cups can be removed using a mix of bicarb of soda (baking powder) and lemon juice which works a treat, same inside the flask. I hold to my original statement – ‘Do yourself a favour buy one’, you won’t regret it.Update: August 2023, my Kaave flask is now three years old and I'm still using it five days a week, and it still performs perfectly.Note I have no connection to Kaave whatsoever I just like the fact that the flask does exactly what it should, and I want to help others make an informed choice.

### ⭐⭐⭐⭐⭐ Great for couples - Fantastic product
*by C***S on 6 October 2020*

Bought this to go on a touring holiday of Scotland with wife. Initially appealed because of nice design, has really useful proper handle for ease of carrying and the fact that it had 2 cups integrated in the design. Now the really good bit, as a pre trial we filled with boiling water to test how long it would hold its heat for and was so impressed. A full 24 hrs later the water we put in was still piping hot and even at 48 hrs later having opened to test temp at various time lapses the water was still just warm amazing. Needless to say we used it everyday on our hols and my tip is that if you want the product to stay super hot all day just fill the flask with hot water on its own or tea- coffee and hot water and take your milk separately. If you make your tea/coffee up in the flask with your milk it will naturally cool more quickly but still good for a trip. The 1 ltr size is just the right size to be big enough to wet your whistle and carry around in your day bag without being too big and cumbersome.

### ⭐⭐⭐⭐⭐ Keeps drinks hot for HOURS!
*by S***N on 25 April 2019*

As part of my search for a flask, I read pages of reviews for various types and sizes of flask and took on board all the comments. Based on those reviews, this is the flask I chose and I am delighted with it. Recently, my husband and I did a 500+ mile journey; the flask was filled with fresh-brewed coffee at 6am. When we eventually got back home at 9pm the remaining coffee in the pot was still hot. It is easy to clean, it has two cups and you don't have to unscrew the stopper all the way to get at the contents. It is sturdy too - shortly after purchase, the flask was dropped on a ceramic tiled floor and suffered no damage whatsoever. Excellent product.

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-19*