---
product_id: 184889522
title: "ALTA SERIES Stainless Steel Tumbler, 12 Ounce, Slate"
brand: "thermos"
price: "€ 48.92"
currency: EUR
in_stock: true
reviews_count: 13
category: "Thermos"
url: https://www.desertcart.gr/products/184889522-alta-series-stainless-steel-tumbler-12-ounce-slate
store_origin: GR
region: Greece
---

# Leak-proof slide lock lid Keeps drinks hot up to 3 hrs Keeps drinks cold up to 10 hrs ALTA SERIES Stainless Steel Tumbler, 12 Ounce, Slate

**Brand:** thermos
**Price:** € 48.92
**Availability:** ✅ In Stock

## Summary

> ☕ Stay hot, stay cool, stay unstoppable.

## Quick Answers

- **What is this?** ALTA SERIES Stainless Steel Tumbler, 12 Ounce, Slate by thermos
- **How much does it cost?** € 48.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/184889522-alta-series-stainless-steel-tumbler-12-ounce-slate)

## Best For

- thermos enthusiasts

## Why This Product

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

## Key Features

- • **Temperature Mastery:** Thermos vacuum insulation locks in your coffee’s heat for 3 hours and your iced drinks stay frosty for 10 hours—because your hustle never cools down.
- • **Sweat-Free Confidence:** No more awkward condensation—exterior stays cool and sweat-proof, keeping your grip dry and your style sharp.
- • **Built to Brave the Day:** Crafted from premium 18/8 stainless steel, this tumbler is your durable sidekick from morning meetings to weekend adventures.
- • **Effortless Clean & Care:** Dishwasher safe with minimal parts that disassemble easily—because your time is too valuable for complicated cleaning rituals.
- • **Spill-Proof Peace of Mind:** Slide lock sealing lid ensures zero leaks on the go, so you can focus on your grind without coffee catastrophes.

## Overview

The ALTA SERIES Stainless Steel Tumbler by Thermos is a sleek 12oz travel companion engineered with advanced vacuum insulation technology to keep beverages hot for up to 3 hours and cold for up to 10 hours. Its durable 18/8 stainless steel body resists wear and tear, while the sweat-proof exterior and leak-proof slide lock lid provide practical convenience for busy professionals. Dishwasher safe and easy to clean, this tumbler blends style, reliability, and performance for your daily caffeine fix.

## Description

The 12oz Stainless Steel Travel Tumbler from the ALTA SERIES BY THERMOS is the perfect size for your morning wake up call. Sometimes life comes at you fast. That’s why we designed this ALTA SERIES BY THERMOS product to be the ultimate combination of quality temp insulation, contemporary style and daily reliability that makes short work of any to-do list. THERMOS vacuum insulation technology keeps coffee and tea hot up to 3 hours. Cold drinks stay icy cold for up to 10 hours. A slide lock lid helps prevent spills and leaks. Exterior stays cool to the touch with hot beverages and sweat-proof with cold. Made with minimal parts that are dishwasher safe and easy to clean. Just top it off and you’re ready to take on the day.

Review: This is the one! - UPDATE: After using this cup every day for one year, it’s still in great condition. It has held up nicely in the dishwasher and the lid comes apart so easily for extra cleaning. The snap sipper cover has not worn and locks in place securely, providing a tight seal. Still ⭐️⭐️⭐️⭐️⭐️. After buying many thermal cups and returning them because they didn’t stay hot long enough for me to finish drinking my coffee in about a half-hour, I’ve finally found the perfect thermal cup. The difference is the vacuum seal. Well made and sturdy; tight seal and does not leak; stays very hot for about an hour and warm for a few hours; fits nicely under my small Keurig without having to remove the bottom piece; dishwasher safe; easy to remove the sturdy lid; easy open and close sipping hole. This cup is not flimsy. Some have commented that it’s difficult to remove the lid, but if you open the sipping hole, the lid unscrews on and off easily by releasing the vacuum seal. Another feature that sets it apart is that I can brew a 12-oz cup of coffee without the water overflowing, with room to spare. I have only positive things to say about this cup. It’s perfect and far superior to the others I’ve tried, including expensive popular name-brands.
Review: Best travel mug yet!! - This was my second purchase of this mug. I bought it for a friend for Christmas since I loved mine so much. This mug comes apart completely to clean. The two plastic rings come off, the inside of the lid comes off. The easiest travel mug to clean ever. It keeps my coffee nice and hot for hours with no need to temper the mug first, even though that might help. Leak proof *as long as you remember to put it all back together* twice I’ve grabbed my mug and not make sure it was reassembled correctly and ended up with hot coffee all over me. I check it now and don’t assume. Great product - only complaint is - I wish it was larger. But that a personal coffee issue.

## Features

- STAYS HOT OR COLD: THERMOS vacuum insulation technology for maximum temperature retention of hot or cold beverages. Keeps your morning coffee or tea hot for up to 3 hours and iced drinks cold for up to 10 hours
- EXTREMELY DURABLE: High quality 18/8 stainless steel construction is dependable to take anywhere you go, from morning errands to the office
- SWEAT-PROOF: Exterior stays cool to the touch with hot beverages and sweat-proof with cold. THERMOS brand mugs and tumblers are dishwasher safe, top rack recommended
- LEAK-PROOF LID: Slide lock sealing lid is leak-proof when closed for peace of mind. Helps to prevent spills and leaks while on-the go. Made with minimal parts that are easy to disassemble and clean
- TRUSTED BRAND: For over a century, THERMOS brand products have been making everyday life better, every time. Hot stays hot. Cold stays cold. Food and drinks stay fresh. The little things go a long way, so do we

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07XYRLP2P |
| Age Range (Description) | Adult |
| Best Sellers Rank | #35,215 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #1,972 in Tumblers & Water Glasses |
| Brand | THERMOS |
| Color | Slate |
| Customer Reviews | 4.3 4.3 out of 5 stars (593) |
| Date First Available | September 16, 2019 |
| Department | Unisex-Adult |
| Finish Type | Powder Coated |
| Global Trade Identification Number | 00041205739524 |
| Included Components | Stainless Steel Travel Tumbler |
| Item Weight | 11.7 ounces |
| Item model number | TS1299 |
| League | ncaa |
| Manufacturer | THERMOS |
| Material Feature | Insulated |
| Number of Items | 1 |
| Pattern | Solid |
| Product Care Instructions | Dishwasher Safe |
| Product Dimensions | 3.3"W x 6.34"H |
| Reusability | Reusable |
| Shape | Round |
| Size | 12 Ounces |
| Special Feature | Dishwasher Safe |
| Specific Uses For Product | Cold Drinks, Hot Drinks |
| Style | Tableware |
| Theme | Food & Drink |
| UPC | 041205739524 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** THERMOS
- **Capacity:** 12 ounces
- **Color:** Slate
- **Material:** Stainless Steel
- **Special Feature:** Dishwasher Safe

## Images

![ALTA SERIES Stainless Steel Tumbler, 12 Ounce, Slate - Image 1](https://m.media-amazon.com/images/I/516Zd1HrNPL.jpg)

## Available Options

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

## Questions & Answers

**Q: What is the curved bottom part made of? Does it mar or grip the table?**
A: The bottom is made of the same metal exterior as the rest of the travel tumbler.  My tumbler has not marred or gripped the table.

**Q: What the height minus the lid?**
A: 5.75 inches without the lid

**Q: Anyone have trouble unscrewing the lid once it's been on?  Got this for Christmas.  Great mug otherwise, but it's extremely hard to unscrew the top.**
A: I believe that a hot beverage will create a vacuum and make the lid nearly impossible to open.  However, it does screw on tightly, but I don't have too much trouble getting it off.

**Q: Are replacement lids available?  I now have three of them with problems. They are recent purchases and fail on the slider.  Almost no liquid comes out**
A: I've had two which are used every week day for a couple of years and never had this problem.  I hope you get some useful feedback.

## Customer Reviews

### ⭐⭐⭐⭐⭐ This is the one!
*by L***E on April 11, 2024*

UPDATE: After using this cup every day for one year, it’s still in great condition. It has held up nicely in the dishwasher and the lid comes apart so easily for extra cleaning. The snap sipper cover has not worn and locks in place securely, providing a tight seal. Still ⭐️⭐️⭐️⭐️⭐️. After buying many thermal cups and returning them because they didn’t stay hot long enough for me to finish drinking my coffee in about a half-hour, I’ve finally found the perfect thermal cup. The difference is the vacuum seal. Well made and sturdy; tight seal and does not leak; stays very hot for about an hour and warm for a few hours; fits nicely under my small Keurig without having to remove the bottom piece; dishwasher safe; easy to remove the sturdy lid; easy open and close sipping hole. This cup is not flimsy. Some have commented that it’s difficult to remove the lid, but if you open the sipping hole, the lid unscrews on and off easily by releasing the vacuum seal. Another feature that sets it apart is that I can brew a 12-oz cup of coffee without the water overflowing, with room to spare. I have only positive things to say about this cup. It’s perfect and far superior to the others I’ve tried, including expensive popular name-brands.

### ⭐⭐⭐⭐⭐ Best travel mug yet!!
*by K***V on January 25, 2022*

This was my second purchase of this mug. I bought it for a friend for Christmas since I loved mine so much. This mug comes apart completely to clean. The two plastic rings come off, the inside of the lid comes off. The easiest travel mug to clean ever. It keeps my coffee nice and hot for hours with no need to temper the mug first, even though that might help. Leak proof *as long as you remember to put it all back together* twice I’ve grabbed my mug and not make sure it was reassembled correctly and ended up with hot coffee all over me. I check it now and don’t assume. Great product - only complaint is - I wish it was larger. But that a personal coffee issue.

### ⭐⭐⭐⭐⭐ Great cup
*by A***N on February 6, 2025*

Perfect size , easy to use and to clean, keeps drinks cold or hot as needed. I highly recommend this cup

## Frequently Bought Together

- THERMOS ALTA SERIES Stainless Steel Tumbler, 12 Ounce, Slate
- THERMOS ALTA SERIES Stainless Steel Tumbler 18 Ounce, Espresso Black
- THERMOS Stainless King Vacuum-Insulated Travel Tumbler, 16 Ounce, Midnight Blue

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**Shop now:** [https://www.desertcart.gr/products/184889522-alta-series-stainless-steel-tumbler-12-ounce-slate](https://www.desertcart.gr/products/184889522-alta-series-stainless-steel-tumbler-12-ounce-slate)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-10*