--- product_id: 75881797 title: "MILTON Thermosteel Optima Flask (Silver, 500ml)" brand: "milton" price: "HK$198" currency: HKD in_stock: true reviews_count: 8 url: https://www.desertcart.hk/products/75881797-milton-thermosteel-optima-flask-silver-500ml store_origin: HK region: Hong Kong --- # 4-6 Hours Temp Retention Leak Proof Design Double Wall Insulation MILTON Thermosteel Optima Flask (Silver, 500ml) **Brand:** milton **Price:** HK$198 **Availability:** ✅ In Stock ## Summary > 💧 Sip Smart, Live Bold! ## Quick Answers - **What is this?** MILTON Thermosteel Optima Flask (Silver, 500ml) by milton - **How much does it cost?** HK$198 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/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 - • **1-Year Warranty:** Enjoy peace of mind with a solid warranty. - • **Durable & Tough:** Crafted from 18/8 stainless steel for long-lasting use. - • **Versatile Usage:** Perfect for gym, sports, school, and outdoor adventures. - • **Easy Maintenance:** Simply clean with mild soap and keep it odor-free. - • **Stay Hydrated in Style:** Elevate your hydration game with a sleek silver finish. ## Overview The MILTON Thermosteel Optima Flask is a 500ml stainless steel bottle designed for durability and temperature retention. With double wall insulation, it keeps your beverages hot or cold for 4-6 hours, making it ideal for various activities like gym sessions, sports, and outdoor adventures. Its leak-proof design ensures no spills, while the sleek silver finish adds a touch of elegance. Easy to clean and maintain, this flask comes with a 1-year warranty for added assurance. ## Description 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. ## 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 | |---------------|-------| | Age Range Description | Adult | | Asin | B00IA0VDZI | | Brand | MILTON | | Cap Type | Screw Cap | | Colour | Silver | | Customer Reviews | 4.3 4.3 out of 5 stars (2,265) 4.3 out of 5 stars | | 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 Features | 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 ### ⭐⭐⭐⭐⭐ Quality is good *by on Reviewed in India 26 April 2026* Quality is superb ### ⭐⭐⭐⭐⭐ Original product and we r very happy *by on Reviewed in India 11 December 2025* Good product. And our food will keep very hot more than 5 hours.Very useful to working people ### ⭐⭐⭐⭐ Nice quality *by on Reviewed in India 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? - 🛒 **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.hk/products/75881797-milton-thermosteel-optima-flask-silver-500ml](https://www.desertcart.hk/products/75881797-milton-thermosteel-optima-flask-silver-500ml) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-05-30*