--- product_id: 75881797 title: "MILTON Thermosteel Optima Flask (Silver, 500ml)" brand: "milton" price: "₨557" currency: SCR in_stock: true reviews_count: 8 category: "Milton" url: https://www.desertcart.sc/products/75881797-milton-thermosteel-optima-flask-silver-500ml store_origin: SC region: Seychelles --- # Leak-proof design 500ml capacity Double-wall vacuum insulation MILTON Thermosteel Optima Flask (Silver, 500ml) **Brand:** milton **Price:** ₨557 **Availability:** βœ… In Stock ## Summary > πŸ”₯ Sip in Style, Stay Refreshed Anywhere πŸ₯€ ## Quick Answers - **What is this?** MILTON Thermosteel Optima Flask (Silver, 500ml) by milton - **How much does it cost?** ₨557 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/75881797-milton-thermosteel-optima-flask-silver-500ml) ## 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 - β€’ **Leak-Proof Confidence:** Secure screw cap and stainless steel body ensure zero spills, perfect for your gym bag, office, or outdoor adventures. - β€’ **Compact & Portable Design:** Slim 500ml flask fits effortlessly in your bag’s side pocket β€” hydration that travels with you, wherever you hustle. - β€’ **Secret Storage Compartment:** Innovative hidden compartment for sugar, vitamins, or meds β€” because convenience is the new luxury on the go. - β€’ **Stay Hot or Cold for Hours:** Double-wall vacuum insulation with copper lining locks temperature for 4-6+ hours, so your drink is always just right. - β€’ **Sleek Stainless Steel Durability:** Crafted from premium 18/8 stainless steel for rust-proof, BPA-free, and long-lasting use β€” built to keep up with your busy lifestyle. ## Overview The MILTON Thermosteel Optima Flask is a 500ml stainless steel insulated bottle featuring double-wall vacuum insulation with copper lining to keep beverages hot or cold for 4-6 hours. Its leak-proof design and durable 18/8 stainless steel body make it ideal for professionals on the move. A unique secret compartment adds unmatched convenience for storing essentials like sugar or vitamins, while its sleek, portable form fits perfectly into your daily routine. ## Description Product Description Milton Thermosteel Optima Flask, Steel plain Satiate your Thirst with your Favorite Refreshing Beverage! Milton Thermosteel Optima Stainless Steel Flask, Steel The Most Convenient Way for Storing your Beverages Without Any Hassle Our Optima Mug thermosteel, tumbler, mug is designed with your convenience in mind. It keeps your beverage hot or cold for hours. The Double Walled, vacuum-sealed construction keeps your drink fresh for longer. Its copper lining provides further heat retention. We have included a secret compartment for your convenience. No extra containers, you can use the compartment to keep your coffee grounds, vitamins, sugar and so many other things. Stop going out on a hike and realizing you need more sugar. Store some in the secret compartment ready to use when you need it. Our Mug is leak proof and rust proof. We have used quality 18/8 stainless steel to make it more durable, last longer and keep the nutritional value of our beverage. Our Mug is BPA free, food grade. The Optima Mug on hikes, picnics, camping, errands, work and so many other places. Important Feature Convenient Hot and Cold Retention Easy to Clean and Use Leak Proof Copper coating for better heat retention Leak - Proof The flasks are leakage proof, both at the surface and at the mouth. While the latter is secured by a trusty lid, the stainless steel body prevents the liquid inside from seeping out. Stainless Steel Body This convenient vacuum insulated flask from Milton’s Thermosteel range has been molded out of stainless steel. Stainless steel is lauded for its durability and is also one of the safest materials used in the kitchen. This flask is therefore safe, sturdy and efficient at storing your beverages for longer periods of time. Special Compartment to Store Medicines This Milton Thermosteel flask has been designed with a special compartment to keep sugar cubes, medicines etc. for easy access, when you are on –the-go. Check out Milton's whole range of thermosteel flasks which are ergonomically designed to suit your needs. Sleek and Simple Our sleek and simple design means it is perfect for anyone for any occasion. From your daily work in the office, to your hike with your friends, the durable stainless steel, leak proof thermos, is perfect for you Copper Coating for Better Heat Retention Carry this vacuum insulated Milton flask with you on the road to keep your drinks fresh for a long time. This thermosteel flask from Milton comes with a special copper coating which keeps both hot and cold beverages from reaching room temperature for up to 24 hours at a stretch. Portable Carry this convenient leak-proof flask wherever you go without having to worry about finding the perfect cuppa on the road. This flask can easily fit into the side pockets of your bag to enable hands-free portability. 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 ## Features - Materia type: Stainless Steel; No. of pieces: 1; Capacity: 500 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 - Warranty: 1 year; Not covered in warranty: The warranty 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. - Pre-condition bottle with hot water if using for hot beverage and cold water if using for cold beverage; Use Mild Soap for cleaning the Flask and advised to be kept open when not in use to avoid odor ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00IA0VDZI | | Age Range (Description) | Adult | | Age Range Description | Adult | | Brand | MILTON | | Cap Type | Screw Cap | | Capacity | 500 Milliliters | | Colour | Silver | | Customer Reviews | 4.3 out of 5 stars 2,303 Reviews | | Enclosure Material | Steel | | Included Components | 1-Piece Bottle (500ml) | | Is Oven Safe | No | | Is the item dishwasher safe? | No | | Item Dimensions W x H | 4W x 96H Millimeters | | Item Type Name | Thermos | | Item Weight | 330 Grams | | Manufacturer | Hamilton | | Manufacturer Warranty Description | This product is under 1 year warranty from the date of retail purchase against any manufacturing defects in material and workmanship. The Warranty does not cover damages resulting from accidents, mishandling or tampering with the mechanism. Warranty valid against producing original bill endorsed by seller. | | Model Name | OPTIMA MUG | | Number of Items | 1 | | OutputCapacity | 500 Milliliters | | Packer Contact Information | Value Retail, F3-12 Bhumi World Industrial Park, Pimplas Village, Mumbai - Nasik Highway, Bhiwandi Thane 421302, 8828826884 | | Pattern | Solid | | Product Care Instructions | Not Microwave Safe | | Product Dimensions | 4W x 96H Millimeters | | Product Features | insulated | | Special Feature | insulated | | Unit Count | 1.00 Count | | With Lid | Yes | ## Product Details - **Age Range (Description):** Adult - **Brand:** MILTON - **Capacity:** 500 Milliliters - **Color:** Silver - **Special Feature:** Cold For 24 Hours ## Images ![MILTON Thermosteel Optima Flask (Silver, 500ml) - Image 1](https://m.media-amazon.com/images/I/61++nK7AfUL.jpg) ![MILTON Thermosteel Optima Flask (Silver, 500ml) - Image 2](https://m.media-amazon.com/images/I/71YM1wVgFLL.jpg) ![MILTON Thermosteel Optima Flask (Silver, 500ml) - Image 3](https://m.media-amazon.com/images/I/710GFNtSGWL.jpg) ![MILTON Thermosteel Optima Flask (Silver, 500ml) - Image 4](https://m.media-amazon.com/images/I/71rHj6Q82tL.jpg) ![MILTON Thermosteel Optima Flask (Silver, 500ml) - Image 5](https://m.media-amazon.com/images/I/71NXR9BERtL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: What is the insulation specification - if ambient is 20 deg C and 95 Deg C liquid is poured in, what will be the guaranteed minimum temp after 6 hrs?** A: See i hav not measured d temp so accurately....i ve used it for cold water in summers and d flask does d job really well....i donno bout hot liquids **Q: What is the size of this product in CMs (Length etc.)?** A: Its smaller than it looks.probably 6 inches.good for tea n coffee.not for water or other beverage.just 420ml. **Q: I need new gasket or lid for this flask.from where can i get it?** A: You can not get. **Q: Larger capacity about one litre available** A: Good product ## 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. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sc/products/75881797-milton-thermosteel-optima-flask-silver-500ml](https://www.desertcart.sc/products/75881797-milton-thermosteel-optima-flask-silver-500ml) --- *Product available on Desertcart Seychelles* *Store origin: SC* *Last updated: 2026-07-15*