---
product_id: 157379882
title: "Travel Mug, Insulated & Leak-Proof, Stainless Steel Double Wall Vacuum, Ceramic & Copper Lining, Black, Reusable Coffee Cup, 12oz 360ml, (Black)"
brand: "fiasp coffee"
price: "¥9592"
currency: JPY
in_stock: false
reviews_count: 5
url: https://www.desertcart.jp/products/157379882-travel-mug-insulated-and-leak-proof-stainless-steel-double-wall
store_origin: JP
region: Japan
---

# 100% leak-proof design Keeps drinks hot 6+ hrs Eco-friendly reusable build Travel Mug, Insulated & Leak-Proof, Stainless Steel Double Wall Vacuum, Ceramic & Copper Lining, Black, Reusable Coffee Cup, 12oz 360ml, (Black)

**Brand:** fiasp coffee
**Price:** ¥9592
**Availability:** ❌ Out of Stock

## Summary

> ♻️ Sip smart, stay hot, and never spill—your eco-chic coffee companion!

## Quick Answers

- **What is this?** Travel Mug, Insulated & Leak-Proof, Stainless Steel Double Wall Vacuum, Ceramic & Copper Lining, Black, Reusable Coffee Cup, 12oz 360ml, (Black) by fiasp coffee
- **How much does it cost?** ¥9592 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/157379882-travel-mug-insulated-and-leak-proof-stainless-steel-double-wall)

## Best For

- fiasp coffee enthusiasts

## Why This Product

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

## Key Features

- • **Heat That Lasts:** Double-wall vacuum insulation keeps your coffee piping hot for over 6 hours—no compromises on your morning ritual.
- • **Sip Sustainably:** Ditch disposables with a sleek, reusable 12oz travel mug that fits your daily grind.
- • **Comfort Meets Style:** Lightweight, cool-to-touch exterior with a slim profile that slides effortlessly into your coat pocket or bag.
- • **Leakproof Confidence:** Innovative flip-top lid with secure lock means zero spills, even in your busiest backpack moments.
- • **Pure Taste Experience:** Ceramic & copper lining eliminates metallic aftertaste, delivering coffee as it was meant to be savored.

## Overview

This 12oz (360ml) black stainless steel travel mug features double-wall vacuum insulation with ceramic and copper lining to keep beverages hot for over 6 hours without metallic taste. Its leak-proof flip-top lid with a secure lock ensures spill-free transport, making it perfect for eco-conscious professionals on the go. Lightweight and ergonomically designed, it fits easily in bags or pockets, combining sustainability with premium functionality.

## Description

REUSABLE COFFEE CUP: An eco-friendly alternative to single-use coffee cups, this reusable coffee cup is made from stainless steel to make sure it lasts you as long as a quality travel mug would do. The cup nominal capacity is 360ml, which is best suited for the standard coffee shop coffee - the 360ml coffee volume. OUR STORY: Julia is an Environmental Scientist and Victor is a Civil Engineer - we have both been working in the consultancy industry for a combined 10 years and decided to help You and every Earth-conscious individual (not just large corporations!) be in charge of making Our Planet a better and more sustainable place for all. We have just started out on our new journey, making Beeswax Wraps at our home, just the two of us, and have now ventured into sourcing these Reusable Coffee Cups. YOU WILL RECEIVE: 1 x Reusable Coffee Cup

Review: Love this item! - This is a really good travel mug that can keep my drinks hot even after 6 hours (this is the longest I’ve used it but sure it stays hit for much longer). It has proven to be completely leakproof while still being lightweight. I have even carried this travel mug in my backpack right next to my iPad as I am so confident about how leakproof it is. It’s never spilled so much as a drop!! I love the flip top lid which is operated by a button which can be slid down to lock the travel mug as it means it’s very safe to have around children without fear of them getting burnt The ceramic coating prevents the awful metallic taste that I’ve found in other travel mugs which makes this one a delight to drink from. My tea takes lovely and isn’t tinted by metallic tastes at all. The ceramic coating is an amazing and innovative idea and this is the only travel mug I’ve found that seems to have it (I did extensive amounts of research to find the best travel mug for my needs as I needed one that was leakproof, kept my drinks hot but didn’t have the horrid metallic taste). This has fitted the bill perfectly. The liquid inside the travel mug can be scalding hot but the outside is pleasantly cool to touch which makes it comfortable to hold. The shape and size is ideal, I even put it in my coat pocket or in my backpack when walking to work so I’m not left carrying it the whole journey like I was with previous travel mugs. I am really happy with this item which is sturdy and very good quality. I wouldn’t hesitate to recommend the travel mug (and I have already recommended it on several eco Facebook groups as well as to friends and family). Buy it!! You won’t regret it!! I would recommend this product. ***** You are very welcome to ask any questions about my experience with this product. If you found this review helpful, please click on the “Yes” button below. *****
Review: Great Reusable Travel Cup! - I spent some time trying to look at different reusable cups that I could use for travel to avoid using disposables. This cup ticks all the boxes for me, and delivers on its promises! The lid is ingenious, and works a treat! I tried filling the cup and tipping it upside down and shaking it - no leaks! Some have commented on it leaking if you have liquid in the lid area, but the instructions on the box warn about this anyway, and could be considered common sense, really :) The look and feel is sleek, the finish is high quality, and the taste has not been changed at all. Also, I filled the cup with a black coffee fresh from a coffee pot, and an hour and a half later it was still incredibly hot - it was amazing! Great product and delivers on all the promises. The only downside is that, due to the lid mechanics, it is fiddly to clean fully and if you want to dry it quickly then it is tricky to get a cloth into all of the areas of the lid, but certainly not to the extent where it would put me off buying it :)

## Features

- Leak Proof

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07XYHHMGR |
| Brand | FIASP COFFEE |
| Colour | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (485) |
| Date First Available | 19 July 2019 |
| Item Weight | 320 g |
| Package Dimensions | 18.5 x 9 x 9 cm; 320 g |
| Special Features | Leak Proof |

## Product Details

- **Brand:** FIASP COFFEE
- **Capacity:** 360 Millilitres
- **Colour:** Black
- **Material:** Ceramic, Copper, Silicone, Stainless Steel
- **Special feature:** Leak Proof

## Images

![Travel Mug, Insulated & Leak-Proof, Stainless Steel Double Wall Vacuum, Ceramic & Copper Lining, Black, Reusable Coffee Cup, 12oz 360ml, (Black) - Image 1](https://m.media-amazon.com/images/I/81rEhf-pzaL.jpg)
![Travel Mug, Insulated & Leak-Proof, Stainless Steel Double Wall Vacuum, Ceramic & Copper Lining, Black, Reusable Coffee Cup, 12oz 360ml, (Black) - Image 2](https://m.media-amazon.com/images/I/817y0Jh5QjL.jpg)
![Travel Mug, Insulated & Leak-Proof, Stainless Steel Double Wall Vacuum, Ceramic & Copper Lining, Black, Reusable Coffee Cup, 12oz 360ml, (Black) - Image 3](https://m.media-amazon.com/images/I/91lHe4s7CiL.jpg)
![Travel Mug, Insulated & Leak-Proof, Stainless Steel Double Wall Vacuum, Ceramic & Copper Lining, Black, Reusable Coffee Cup, 12oz 360ml, (Black) - Image 4](https://m.media-amazon.com/images/I/81Hv5aD14lL.jpg)
![Travel Mug, Insulated & Leak-Proof, Stainless Steel Double Wall Vacuum, Ceramic & Copper Lining, Black, Reusable Coffee Cup, 12oz 360ml, (Black) - Image 5](https://m.media-amazon.com/images/I/81IabFCcwdL.jpg)

## Questions & Answers

**Q: How do you unscrew the whole lid**
A: Mine just unscrews in a an a it clockwise direction as Std.. Is quite stiff as you want it to be sealed when shut. Make sure it is not 'locked' though as this might make a diffidence.
To lock it you slide the grey button down until you see the blue bit and to unlock it you slide it up so blue bit is concealed. 
Hope that helps x

**Q: Can you show a picture of the spout. How can you drink from it without spilling it down your front on a moving train?**
A: Hello Paul Simon,
Thank you so much for your question!
We can not attach photos here unfortunately, but please refer to our images 2 and 4 - they show photos of the spout. 
The cup is designed such that it doesn't spill down the front, we've never had an issue with using this cup ourselves, but of course, it depends on the usage, preferences and there are external factors that the cup design can not control for, so please do send us a private message if the photos 2 and 4 don't work for you and you would like more photos, it's just that we can not attach images here, so sorry about that!
We really hope that helps and have a lovely Friday, Paul Simon!
Kind Regards,
Julia and Victor

**Q: Why inside the cup and cap are very smelly? And this bad smell changes the taste and smell of drink!**
A: Hi,

Thank you so much for your message!

It is indeed very important to have a flavorless vessel, especially for fine tea, as we have learnt during our travels to Chinese tea villages in the mountains of Guangdong and the Fujian. This is why we made the inside of this cup from ceramic lining! 

However, some cups may acquire a smell during manufacturing due to the heating of other materials during production.

I can assure you that this will definitely disappear over a few uses, especially if you have already washed it thoroughly before use as per the instructions, but if you want to speed up the process, then you can leave it to aerate in the sun or the wind, or put it in a very cold place over a day or so.

I am certainly happy with drinking even the fine flavoured Bai Hao Yin Zhen (the white silver needle tea) from the cup as opposed to from my ceramic gaiwan and china cups, so it will certainly improve!

But if you are still unhappy with the cup after that, then do please feel free to get in touch or initiate a refund and we will always be very happy to assist you, Lee!

Warmest Regards,
Julia

**Q: Can you open this one handed**
A: Yes you just press the button while holding it and drink

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love this item!
*by R***E on 27 October 2019*

This is a really good travel mug that can keep my drinks hot even after 6 hours (this is the longest I’ve used it but sure it stays hit for much longer). It has proven to be completely leakproof while still being lightweight. I have even carried this travel mug in my backpack right next to my iPad as I am so confident about how leakproof it is. It’s never spilled so much as a drop!! I love the flip top lid which is operated by a button which can be slid down to lock the travel mug as it means it’s very safe to have around children without fear of them getting burnt The ceramic coating prevents the awful metallic taste that I’ve found in other travel mugs which makes this one a delight to drink from. My tea takes lovely and isn’t tinted by metallic tastes at all. The ceramic coating is an amazing and innovative idea and this is the only travel mug I’ve found that seems to have it (I did extensive amounts of research to find the best travel mug for my needs as I needed one that was leakproof, kept my drinks hot but didn’t have the horrid metallic taste). This has fitted the bill perfectly. The liquid inside the travel mug can be scalding hot but the outside is pleasantly cool to touch which makes it comfortable to hold. The shape and size is ideal, I even put it in my coat pocket or in my backpack when walking to work so I’m not left carrying it the whole journey like I was with previous travel mugs. I am really happy with this item which is sturdy and very good quality. I wouldn’t hesitate to recommend the travel mug (and I have already recommended it on several eco Facebook groups as well as to friends and family). Buy it!! You won’t regret it!! I would recommend this product. ***** You are very welcome to ask any questions about my experience with this product. If you found this review helpful, please click on the “Yes” button below. *****

### ⭐⭐⭐⭐⭐ Great Reusable Travel Cup!
*by A***R on 22 February 2020*

I spent some time trying to look at different reusable cups that I could use for travel to avoid using disposables. This cup ticks all the boxes for me, and delivers on its promises! The lid is ingenious, and works a treat! I tried filling the cup and tipping it upside down and shaking it - no leaks! Some have commented on it leaking if you have liquid in the lid area, but the instructions on the box warn about this anyway, and could be considered common sense, really :) The look and feel is sleek, the finish is high quality, and the taste has not been changed at all. Also, I filled the cup with a black coffee fresh from a coffee pot, and an hour and a half later it was still incredibly hot - it was amazing! Great product and delivers on all the promises. The only downside is that, due to the lid mechanics, it is fiddly to clean fully and if you want to dry it quickly then it is tricky to get a cloth into all of the areas of the lid, but certainly not to the extent where it would put me off buying it :)

### ⭐⭐⭐⭐⭐ The perfect travel mug!
*by L***T on 6 February 2020*

I thought I'd wait until I'd used this travel mug for while before reviewing it so I could give an honest opinion of it. Well, I've been using it daily now for a couple of weeks and I'm amazed by it - after calling to get a regular latte from my favourite coffee shop I can drop the full mug into my bag and be confident that not a single drop will escape! The coffee stays hot whilst the outside of the mug stays cool (so much so you'd swear there was no hot drink inside) and there's no metallic taste that you can get from some travel mugs. The lip makes it easy to drink from whilst on the move and the push button function and locking lid keeps everything so secure. The only downside I've found so far is it can be difficult to get into the nooks and crannies of the lid to clean it but that's a small price to pay for such an impressive mug. Thrilled with my purchase!

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-14*