---
product_id: 96869375
title: "Milton Thermosteel Flip Lid Flask 350, Double Walled Vacuum Insulated Thermos 350 ml | 12 oz | 24 Hours Hot and Cold Water Bottle with Cover, 18/8 Stainless Steel, BPA Free, Leak-Proof | Silver"
brand: "milton"
price: "$64"
currency: NZD
in_stock: true
reviews_count: 13
category: "Milton"
url: https://www.desertcart.nz/products/96869375-milton-thermosteel-flip-lid-flask-350-double-walled-vacuum-insulated
store_origin: NZ
region: New Zealand
---

# 24-hour temperature retention Leak-proof flip lid 350 ml capacity, perfect on-the-go size Milton Thermosteel Flip Lid Flask 350, Double Walled Vacuum Insulated Thermos 350 ml | 12 oz | 24 Hours Hot and Cold Water Bottle with Cover, 18/8 Stainless Steel, BPA Free, Leak-Proof | Silver

**Brand:** milton
**Price:** $64
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay hot, stay cool, stay ahead! 🥤

## Quick Answers

- **What is this?** Milton Thermosteel Flip Lid Flask 350, Double Walled Vacuum Insulated Thermos 350 ml | 12 oz | 24 Hours Hot and Cold Water Bottle with Cover, 18/8 Stainless Steel, BPA Free, Leak-Proof | Silver by milton
- **How much does it cost?** $64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/96869375-milton-thermosteel-flip-lid-flask-350-double-walled-vacuum-insulated)

## Best For

- milton enthusiasts

## Why This Product

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

## Key Features

- • **One-hand flip & sip:** Innovative flip lid design lets you open and close the flask effortlessly with one hand—no twisting needed.
- • **Portable with style:** Includes a protective jacket for insulation and easy carrying—because your flask should look as good as your lifestyle.
- • **Leak-proof confidence:** Secure lid and leak-proof design prevent spills, making it ideal for busy professionals on the move.
- • **All-day temperature lock:** Double-walled vacuum insulation with inner copper coating keeps drinks hot or cold for 24 hours.
- • **Sleek, durable stainless steel:** Premium 18/8 stainless steel construction ensures long-lasting durability and a polished silver finish.

## Overview

The Milton Thermosteel Flip Lid Flask 350 ml is a premium double-walled vacuum insulated thermos crafted from 18/8 stainless steel. Engineered with an inner copper coating, it guarantees 24-hour temperature retention for hot or cold beverages. Its leak-proof flip lid enables one-handed operation and doubles as a cup, while the included protective jacket adds portability and style. Perfectly sized for professionals seeking reliable hydration on the go.

## Description

Shop MILTON at the desertcart Travel & To-Go Drinkware store. Free Shipping on eligible items. Everyday low prices, save up to 50%.

Review: Great price and quality. - It is exactly what I wanted. It looks so nice in person and really does keep liquids hot for many hours. The bag that came with it was definitely a nice touch. It’s nice to be able to carry it around without having your hands full. The qualitative is also durable and it seals correctly. Great purchase!
Review: Keeps coffee hot a long time. - great thermos no leaks , sleek design. Good value for the money.

## Features

- ✅The included protective jacket may vary in color or design due to mixed inventory. All jackets are high-quality and provide the same insulation and protection.
- ✅ Despite its sizable presence, rest assured that the interior capacity perfectly aligns with the specified title and selected item. The size may seem larger due to it's robust double-wall vacuum insulation.
- ✅ To optimizse Hot & Cold performance precondition the flask with hot or cold water and fill to maximum capacity when using it. Avoid partial filling for maximum effectiveness & secure the lid tightly for keeping temperature locked in.
- ✅ 24-hour temperature retention - Milton Stainless Steel Bottle is designed with double-wall vacuum insulation and an inner copper coating. This unique design ensures that your beverages stay hot or cold for a full 24 hours, regardless of the ambient temperature. So, you can enjoy your favorite drinks at the perfect temperature all day long.
- ✅ Leak proof water bottle - This Metal Water Bottle has a leak-proof design that prevents any unwanted drips or messes. The best part about it is the flip lid that allows you to open and close the bottle with just one hand. No more twisting or unscrewing caps, just flip and sip! Additionally, the lid can be used as a cup, making it even more practical and convenient.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00MS0D9S0 |
| Age Range (Description) | Adult |
| Base Diameter | 2.5 Inches |
| Best Sellers Rank | #2,793 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #65 in Insulated Bottles |
| Brand | MILTON |
| Cap Type | Screw Cap |
| Capacity | 350 Milliliters |
| Color | Silver |
| Customer Reviews | 4.4 4.4 out of 5 stars (153,930) |
| Date First Available | December 21, 2013 |
| Global Trade Identification Number | 08902061100595 |
| Included Components | 1 - Piece Flip Lid Water Bottle (350 ml) |
| Is Discontinued By Manufacturer | No |
| Is Dishwasher Safe | No |
| Item Weight | 4.7 ounces |
| Item model number | FLASK 350 |
| Manufacturer | MILTON |
| Material | Stainless Steel |
| Model Name | FLASK 350 |
| Number of Items | 1 |
| Product Care Instructions | Hand Wash Only |
| Product Dimensions | 2"W x 9"H |
| Recommended Uses For Product | Water, Tea, Outdoor, Coffee, Indoor, Camping |
| Special Feature | Cold 24 Hours, Dishwasher Safe, Double Wall, Hot 24 Hours, Leakproof |
| UPC | 751827710121 |
| With Lid | Yes |

## Product Details

- **Brand:** MILTON
- **Capacity:** 350 Milliliters
- **Color:** Silver
- **Recommended Uses For Product:** Water, Tea, Outdoor, Coffee, Indoor, Camping
- **Special Feature:** Cold 24 Hours, Dishwasher Safe, Double Wall, Hot 24 Hours, Leakproof

## Images

![Milton Thermosteel Flip Lid Flask 350, Double Walled Vacuum Insulated Thermos 350 ml | 12 oz | 24 Hours Hot and Cold Water Bottle with Cover, 18/8 Stainless Steel, BPA Free, Leak-Proof | Silver - Image 1](https://m.media-amazon.com/images/I/712OS9IxQ7L.jpg)

## Questions & Answers

**Q: What are the dimensions of the poster?**
A: 24x36"

**Q: does this thermos come with a separate case?**
A: Yes, it come with separate case.

**Q: Is Milton Thermosteel dishwasher safe?**
A: Not sure. But I have washed them in the top row of the dishwasher.

**Q: How do you keep liquids cold? I bought this to keep my infants milk cold while we are outside**
A: Rinse the Thermosteel flask with cold water and then fill the flask with cold milk/ liquids. It will stay cold for a while 😃

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great price and quality.
*by F***A on December 25, 2025*

It is exactly what I wanted. It looks so nice in person and really does keep liquids hot for many hours. The bag that came with it was definitely a nice touch. It’s nice to be able to carry it around without having your hands full. The qualitative is also durable and it seals correctly. Great purchase!

### ⭐⭐⭐⭐⭐ Keeps coffee hot a long time.
*by G***Y on January 3, 2026*

great thermos no leaks , sleek design. Good value for the money.

### ⭐⭐⭐⭐⭐ Convenient little thermos
*by C***A on January 8, 2026*

I've only used it a couple of days so far but I love it! It came perfectly packaged, and the little case to take it around is very convenient. It looks and feels well made and durable, it kept my water hot for the 2 hours I had it in there (I wouldn't know longer yet). It's lightweight and easy to use and clean, I bought it to take on a trip to the beach and be able to drink mate, and it delivered! Happy with my purchase.

## Frequently Bought Together

- Milton Thermosteel Flip Lid Flask 350, Double Walled Vacuum Insulated Thermos 350 ml | 12 oz | 24 Hours Hot and Cold Water Bottle with Cover, 18/8 Stainless Steel, BPA Free, Leak-Proof | Silver
- Dr. Brown's Baby Formula Dispenser with Snap-On Lid for On-the-Go Feedings,Milk Powder Dispenser for Traveling with Infant,Gray

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-26*