--- product_id: 76798969 title: "Milton Optima 350 Thermosteel Hot and Cold Flask, 350 ml, Silver" brand: "milton" price: "$29.80" currency: USD in_stock: true reviews_count: 8 category: "Milton" url: https://www.desertcart.us/products/76798969-milton-optima-350-thermosteel-hot-and-cold-flask-350-ml store_origin: US region: United States of America --- # Keeps beverages hot for 5+ hrs Maintains cold drinks chilled all day Rust-resistant 18/8 stainless steel durability Milton Optima 350 Thermosteel Hot and Cold Flask, 350 ml, Silver **Brand:** milton **Price:** $29.80 **Availability:** ✅ In Stock ## Summary > 🔥 Stay hot, stay cool, stay ahead with Milton Optima! ## Quick Answers - **What is this?** Milton Optima 350 Thermosteel Hot and Cold Flask, 350 ml, Silver by milton - **How much does it cost?** $29.80 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/76798969-milton-optima-350-thermosteel-hot-and-cold-flask-350-ml) ## 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 Endure:** Crafted from premium 18/8 stainless steel, this flask resists rust and daily wear, making it your reliable hydration partner. - • **Compact & Travel-Ready:** Slim 350 ml capacity fits effortlessly in your backpack’s side pocket or hand, ideal for busy professionals on the move. - • **Effortless Maintenance:** Dishwasher safe and easy to clean, combining convenience with high performance for your daily hustle. - • **Smart Storage Solution:** Innovative lid design includes a special compartment for sugar cubes, medicines, or small essentials—stay prepared on the go. - • **All-day Temperature Lock:** Double-walled insulation with inner copper coating ensures your drink stays perfectly hot or cold for hours. ## Overview The Milton Optima 350 Thermosteel Flask is a sleek, silver 350 ml insulated bottle designed for professionals who demand durability and performance. Featuring double-wall insulation with an inner copper coating, it keeps beverages hot or cold for over 5 hours. Made from rust-resistant 18/8 stainless steel, it includes a smart lid compartment for small essentials and fits perfectly in backpacks for easy portability. Dishwasher safe and built for everyday use, it’s the ultimate companion for your active lifestyle. ## Description From the manufacturer Copper Coating The copper coating provides heat retention properties which make it more convenient and user-friendly since it prevents the beverages from getting cold for long hours. Leakage-Proof The flasks are leakage proof which gives a hassle-free utility to the user since one does not need to worry about the mess caused by seepage. The secure lid adds to the leak-proof nature of the flask. Capacity The flask is convenient to store enough beverage for the day. If you like to travel alone, the capacity of this flask is perfect to carry along your favourite beverage. Vacuum Insulated These jars from Treo by Milton sport a unique lid design that has a see-through top. This functional design allows one to view the content of the jar from above. Stainless Steel Material The stainless steel material is convenient since it gives protection from dust and corrosion while not letting it lose its stylish outlook which makes it attractive to the users in the first place. Portable This flask can be used anywhere at any given point of time without any hassle or mess after use which enhances the advantage of this product. Review: Best - Very good product to purchase Review: Original product and we r very happy - Good product. And our food will keep very hot more than 5 hours. Very useful to working people ## Technical Specifications | Specification | Value | |---------------|-------| | Age Range (Description) | Adult | | Brand | MILTON | | Capacity | 350 Milliliters | | Colour | Silver | | Recommended Uses For Product | Soup, Curries | | Special Feature | Double Wall , Rust Resistant, durable | ## Product Details - **Brand:** MILTON - **Capacity:** 350 Milliliters - **Colour:** Steelplain - **Recommended Uses For Product:** Soup, Curries - **Special Feature:** Double Wall, Rust Resistant, durable ## Images ![Milton Optima 350 Thermosteel Hot and Cold Flask, 350 ml, Silver - Image 1](https://m.media-amazon.com/images/I/61Hvi3uE6xL.jpg) ![Milton Optima 350 Thermosteel Hot and Cold Flask, 350 ml, Silver - Image 2](https://m.media-amazon.com/images/I/71YM1wVgFLL.jpg) ![Milton Optima 350 Thermosteel Hot and Cold Flask, 350 ml, Silver - Image 3](https://m.media-amazon.com/images/I/71yfJv7K4FL.jpg) ![Milton Optima 350 Thermosteel Hot and Cold Flask, 350 ml, Silver - Image 4](https://m.media-amazon.com/images/I/71rHj6Q82tL.jpg) ![Milton Optima 350 Thermosteel Hot and Cold Flask, 350 ml, Silver - Image 5](https://m.media-amazon.com/images/I/71y7viP5cML.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Best *by M***L on 3 June 2026* Very good product to purchase ### ⭐⭐⭐⭐⭐ Original product and we r very happy *by C***U on 11 December 2025* Good product. And our food will keep very hot more than 5 hours. Very useful to working people ### ⭐⭐⭐⭐ Nice quality *by R***A on 1 July 2025* keeps everything hot or cold for several hours.but the flask after long time to open the tea or milk the lid was automatic to jump the side. ## Frequently Bought Together - Milton Optima 350 Thermosteel Hot and Cold Flask, 350 ml, Silver - Borosil - vacuum insulated Hydra Coffeemate stainless Steel travel mug - spill proof - hot and cold_BT300BLK110_300ml - Milton Optima 420 Thermosteel Hot and Cold Flask, 420 ml, Silver | ISI Certified | Vacuum Insulated | Rust Proof | Leak Proof | Tea | Coffee | Juice --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/76798969-milton-optima-350-thermosteel-hot-and-cold-flask-350-ml](https://www.desertcart.us/products/76798969-milton-optima-350-thermosteel-hot-and-cold-flask-350-ml) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-06-21*