---
product_id: 47260665
title: "Milton Thermosteel Optima 350 Double Wall Vacuum Insulated Flask, 350 ml | 12 oz | Hot and Cold for Long Hours, 18/8 Stainless Steel, Coffee Travel Mug Tumbler, Rust and Leak-Proof, BPA-Free | Silver"
brand: "milton"
price: "₨1392"
currency: SCR
in_stock: true
reviews_count: 2
category: "Milton"
url: https://www.desertcart.sc/products/47260665-milton-thermosteel-optima-350-double-wall-vacuum-insulated-flask-350
store_origin: SC
region: Seychelles
---

# 350 ml capacity - perfect personal size 18/8 stainless steel - rust & leak-proof Keeps drinks hot/cold 4-6 hrs Milton Thermosteel Optima 350 Double Wall Vacuum Insulated Flask, 350 ml | 12 oz | Hot and Cold for Long Hours, 18/8 Stainless Steel, Coffee Travel Mug Tumbler, Rust and Leak-Proof, BPA-Free | Silver

**Brand:** milton
**Price:** ₨1392
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay hot, stay cool, stay ahead 🥤

## Quick Answers

- **What is this?** Milton Thermosteel Optima 350 Double Wall Vacuum Insulated Flask, 350 ml | 12 oz | Hot and Cold for Long Hours, 18/8 Stainless Steel, Coffee Travel Mug Tumbler, Rust and Leak-Proof, BPA-Free | Silver by milton
- **How much does it cost?** ₨1392 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/47260665-milton-thermosteel-optima-350-double-wall-vacuum-insulated-flask-350)

## 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

- • **Built to Last:** Premium 18/8 stainless steel construction ensures rust-free durability and everyday toughness.
- • **Smart Storage:** Bonus compartment for sugar cubes, medicines, or small essentials—because details matter.
- • **Thermal Mastery:** Double-wall vacuum insulation with inner copper coating locks in temperature for 4-6 hours of hot or cold refreshment.
- • **Compact Powerhouse:** 350 ml capacity fits perfectly in your backpack or hand for on-the-go hydration.
- • **Leak-Proof Confidence:** Secure screw cap design prevents spills, making it your reliable travel companion.

## Overview

The Milton Thermosteel Optima 350 is a sleek, durable 350 ml double-wall vacuum insulated flask crafted from premium 18/8 stainless steel. Designed for professionals on the move, it keeps beverages hot or cold for up to 6 hours, features a leak-proof screw cap, and includes a smart compartment for small essentials. Perfect for gym, office, or outdoor adventures, it combines style, functionality, and reliability in one compact travel mug.

## Description

Materia type: Stainless Steel; No. of pieces: 1; Capacity: 350 ML; Colour: Silver; Insulation type: Double wall; Temperature retention: Yes (Keeps liquid hot/cold upto 4 - 6 Hours); Leak proof: Yes Best Usage: Gym, Sports, School, Outdoors : 1 year; Not covered in : The does not cover damages resulting from accidents, mishandling or tampering with the mechanism. Fabricated inside and outside in 18/8 quality stainless steel; its tough and durable.

Review: NOT HOT - TOO SMALL AND NOT TOO HOT
Review: I liked - keeps everything hot or cold for several hours

## Features

- Materia type: Stainless Steel; No. of pieces: 1; Capacity: 350 ML; Colour: Silver;
- Double walled insulated flask keeps your beverages hot or cold for long hours, Inner copper coating for better temperature retention. It is made up of a durable 18/8 stainless steel, rust free, built to withstand the demands of everyday use.
- The lid enables the mug to reduce the transfer of temperature keeps even more insulation. This flask makes it perfect for carrying with you on any day-trip or anywhere you go. It is designed to be carried by hand or into the side compartments of your backpack for easy access.
- The taste and nutritive value of the drinks remains intact making the flask very appropriate choice for storing beverages. Special compartment for keeping sugar cubes, medicines and more. Ideal for carrying liquids such as sambar, curries, soup and dal
- This flask makes it perfect for carrying with you on any day-trip or anywhere you go. It is designed to be carried by hand or into the side compartments of your backpack for easy access.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IA0WW0I |
| Additional Features | Durable |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Base Diameter | 5 Centimeters |
| Best Sellers Rank | #781,258 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #5,478 in Insulated Bottles |
| Brand | MILTON |
| Brand Name | MILTON |
| Cap Type | Screw Cap |
| Capacity | 340 Milliliters |
| Color | Silver |
| Customer Reviews | 4.3 out of 5 stars 7,847 Reviews |
| Included Components | Lid |
| Is Oven Safe | No |
| Is the item dishwasher safe? | No |
| Is the item microwaveable? | No |
| Item Height | 9.84 inches |
| Item Weight | 0.3 Kilograms |
| Manufacturer | Milton |
| Material Type | Stainless Steel |
| Number of Items | 1 |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Coffee |
| Special Feature | Durable |
| Unit Count | 1 Count |
| With Lid | Yes |

## Product Details

- **Brand:** MILTON
- **Capacity:** 340 Milliliters
- **Color:** Silver
- **Recommended Uses For Product:** Coffee
- **Special Feature:** Durable

## Images

![Milton Thermosteel Optima 350 Double Wall Vacuum Insulated Flask, 350 ml | 12 oz | Hot and Cold for Long Hours, 18/8 Stainless Steel, Coffee Travel Mug Tumbler, Rust and Leak-Proof, BPA-Free | Silver - Image 1](https://m.media-amazon.com/images/I/613kd4LyzGL.jpg)

## Customer Reviews

### ⭐⭐ NOT HOT
*by M***E on June 24, 2024*

TOO SMALL AND NOT TOO HOT

### ⭐⭐⭐⭐⭐ I liked
*by M***A on April 22, 2025*

keeps everything hot or cold for several hours

## Frequently Bought Together

- Milton Thermosteel Optima 350 Double Wall Vacuum Insulated Flask, 350 ml | 12 oz | Hot and Cold for Long Hours, 18/8 Stainless Steel, Coffee Travel Mug Tumbler, Rust and Leak-Proof, BPA-Free Silver
- Milton Elfin Thermosteel Thermos Flask, 500 ml
- Milton Optima 350 Thermosteel Hot and Cold Flask, 350 ml, Silver | Vacuum Insulated | Rust Proof | Leak Proof | Tea | Coffee | Juice

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**Shop now:** [https://www.desertcart.sc/products/47260665-milton-thermosteel-optima-350-double-wall-vacuum-insulated-flask-350](https://www.desertcart.sc/products/47260665-milton-thermosteel-optima-350-double-wall-vacuum-insulated-flask-350)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-20*