---
product_id: 627330666
title: "Otto Koning Travel Mug 12oz (350ml)- Leakproof Stainless Steel Coffee Cup | Thermal Flask for Hot Drinks (4h) | Fits Car Holder, BPA Free & Anti-Slip | The Smart Choice for Commute"
brand: "otto koning"
price: "R390"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Otto Koning"
url: https://www.desertcart.co.za/products/627330666-otto-koning-travel-mug-12oz-350ml-leakproof-stainless-steel-coffee
store_origin: ZA
region: South Africa
---

# 99.9% leakproof screw lid Fits 99% car cup holders 4-hour thermal insulation Otto Koning Travel Mug 12oz (350ml)- Leakproof Stainless Steel Coffee Cup | Thermal Flask for Hot Drinks (4h) | Fits Car Holder, BPA Free & Anti-Slip | The Smart Choice for Commute

**Brand:** otto koning
**Price:** R390
**Availability:** ✅ In Stock

## Summary

> ☕ Upgrade your daily grind with leakproof, stylish thermal power!

## Quick Answers

- **What is this?** Otto Koning Travel Mug 12oz (350ml)- Leakproof Stainless Steel Coffee Cup | Thermal Flask for Hot Drinks (4h) | Fits Car Holder, BPA Free & Anti-Slip | The Smart Choice for Commute by otto koning
- **How much does it cost?** R390 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/627330666-otto-koning-travel-mug-12oz-350ml-leakproof-stainless-steel-coffee)

## Best For

- otto koning enthusiasts

## Why This Product

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

## Key Features

- • **Sip in Style:** Comfortable thick rim designed for effortless sipping, even with the lid off.
- • **Clean & Conscious:** BPA-free, food-grade stainless steel delivers pure taste with zero plastic waste.
- • **Thermal Powerhouse:** Double-walled vacuum insulation keeps drinks hot or cold for up to 4 hours.
- • **No-Spill Confidence:** 100% leakproof screw lid seals your commute—no coffee stains, no stress.
- • **Commute-Ready Design:** Anti-slip silicone base and perfect 12oz size fit your car holder and desk.

## Overview

The Otto Koning 12oz Travel Mug is a premium stainless steel thermal flask engineered for busy professionals. Featuring a 99.9% leakproof screw lid, double-wall vacuum insulation that keeps beverages hot or cold for 4 hours, and a sleek design that fits 99% of car cup holders, it’s the smart, eco-friendly choice for your commute. BPA-free and scratch-resistant, this mug combines durability with pure taste, making it the perfect companion for your on-the-go lifestyle.

## Description

Otto Koning Travel Mug 12oz (350ml)- Leakproof Stainless Steel Coffee Cup | Thermal Flask for Hot Drinks (4h) | Fits Car Holder, BPA Free & Anti-Slip | The Smart Choice for Commute : desertcart.co.uk: Home & Kitchen

Review: Brilliant! - Brilliant little mug! This is my go to mug now for nearly all of my hot drinks. So this was designed not to keep drinks boiling hot for 6-7 hours nor is it completely leak proof. If you want that then you need to buy a vacume flask. TBH, none of these styles of flask are totally leakproof. What it does do is keep drinks hotter/warmer for longer than a normal cup which is the whole point. Personally, I can't drink boiling hot coffee, 60 ish degrees is where I like my drinks to be. I would say that it is about 99.9% leakproof but I wouldn't toss it into my backpack. I did a test of shaking it up and down with hot water in and non came out but i still wouldn't trust it in my bag. I have hovever had no problems putting it in the side pocket of my rucksack where it stays uprightish and going on a long walk in the country or jumping on and off trains to and from work. The reason I went for this flask is that I don't sip my drinks from the hole in the lid but instead prefer to sip from the flask. It has a thick, comfortable rim unlike others which are hard and sharp. I have even started making my tea in it when working from home as it often gets cold when I get destracted by work and then I have to go and microvave it. In this I simply just pop the lid on without screwing it down which keeps my tea hot till the last drop. It has a nice rubber base and is comfortable to grip. It is also the right size for a medium takeaway coffee if you feel like splashing the cash at a cost a lottta or a starbar! There may be better thermal mugs out there but for the price, this one for me is perfect :)
Review: Excellent travel mug - This is an excellent travel mug! Keeps my tea lovely and hot, you don’t have to fight to open it, can drink from it with the lid off comfortably. Great quality materials, lovely colour (pink) and it also works well with cold drinks too. It started to leak in December ! Gutted! Did not last!

## Features

- ✅ NO LEAKS, NO DRAMA – You have enough to worry about; coffee stains shouldn't be one of them. Our 100% leakproof screw lid seals the deal—literally. Throw it in your bag or backpack with zero risk. Reliable engineering for a chaotic world.
- ✅ ENGINEERED FOR REAL LIFE – Double-walled vacuum insulation maintains your flat white hot or iced tea cold for 4 hours. Exterior stays cool to the touch with zero condensation. Premium powder coating resists scratches and drops.
- ✅ YOUR COMMUTE, UPGRADED – Designed for the daily grind. Fits 99% of car cup holders and stands firm on your office desk thanks to the silent, anti-slip silicone base.12oz (350 ml) capacity fits perfectly under most coffee machines.
- ✅ PURE TASTE, ZERO WASTE – Crafted from high-grade Food Grade Stainless Steel. 100% BPA and Phthalate-free. No metallic aftertaste, just your drink as intended. A robust, sustainable alternative to single-use plastic.
- ✅ THE SMART CHOICE – Premium quality doesn't need a premium price tag. We back our engineering with a solid commitment: if it doesn't simplify your mornings, we will make it right. Upgrade your routine today.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CL5M8J67 |
| Best Sellers Rank | 699 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 4 in Insulated Cups & Mugs |
| Brand | Otto Koning |
| Capacity | 350 Millilitres |
| Colour | Pink |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,879) |
| Date First Available | 31 Oct. 2023 |
| Item Weight | 250 g |
| Material | Stainless Steel |
| Model Number | TC 350 |
| Product Dimensions | 9 x 9 x 15 cm; 250 g |
| Special Features | Double Wall, Leakproof |

## Product Details

- **Brand:** Otto Koning
- **Capacity:** 350 Millilitres
- **Colour:** Pink
- **Recommended uses for product:** Coffee
- **Special feature:** Double Wall, Leakproof

## Images

![Otto Koning Travel Mug 12oz (350ml)- Leakproof Stainless Steel Coffee Cup | Thermal Flask for Hot Drinks (4h) | Fits Car Holder, BPA Free & Anti-Slip | The Smart Choice for Commute - Image 1](https://m.media-amazon.com/images/I/51OnE-zhOJL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Brilliant!
*by J***S on 15 April 2025*

Brilliant little mug! This is my go to mug now for nearly all of my hot drinks. So this was designed not to keep drinks boiling hot for 6-7 hours nor is it completely leak proof. If you want that then you need to buy a vacume flask. TBH, none of these styles of flask are totally leakproof. What it does do is keep drinks hotter/warmer for longer than a normal cup which is the whole point. Personally, I can't drink boiling hot coffee, 60 ish degrees is where I like my drinks to be. I would say that it is about 99.9% leakproof but I wouldn't toss it into my backpack. I did a test of shaking it up and down with hot water in and non came out but i still wouldn't trust it in my bag. I have hovever had no problems putting it in the side pocket of my rucksack where it stays uprightish and going on a long walk in the country or jumping on and off trains to and from work. The reason I went for this flask is that I don't sip my drinks from the hole in the lid but instead prefer to sip from the flask. It has a thick, comfortable rim unlike others which are hard and sharp. I have even started making my tea in it when working from home as it often gets cold when I get destracted by work and then I have to go and microvave it. In this I simply just pop the lid on without screwing it down which keeps my tea hot till the last drop. It has a nice rubber base and is comfortable to grip. It is also the right size for a medium takeaway coffee if you feel like splashing the cash at a cost a lottta or a starbar! There may be better thermal mugs out there but for the price, this one for me is perfect :)

### ⭐⭐⭐⭐⭐ Excellent travel mug
*by M***) on 21 October 2025*

This is an excellent travel mug! Keeps my tea lovely and hot, you don’t have to fight to open it, can drink from it with the lid off comfortably. Great quality materials, lovely colour (pink) and it also works well with cold drinks too. It started to leak in December ! Gutted! Did not last!

### ⭐⭐⭐⭐⭐ Leak proof
*by J***Y on 16 February 2026*

Great cup. Leak proof. Keeps my drink hot for hours.

## Frequently Bought Together

- Otto Koning Coffee Cup Travel Mug 350ML, Insulated Coffee Cup with Leakproof Lid, Reusable Coffee Cups for Travel, Stainless Steel Coffee Mug for Hot and Cold Coffee Water and Tea (Pink 350ml/12oz)
- BODUM 11889-01S JOYCUP Travel Mug, double wall, 0.25 L, black band, Plastic

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**Shop now:** [https://www.desertcart.co.za/products/627330666-otto-koning-travel-mug-12oz-350ml-leakproof-stainless-steel-coffee](https://www.desertcart.co.za/products/627330666-otto-koning-travel-mug-12oz-350ml-leakproof-stainless-steel-coffee)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-21*