--- product_id: 91534445 title: "ThermoFlask 40 oz Double Wall Vacuum Insulated Stainless Steel Water Bottle - Reusable with Leakproof Chug & Straw Lids - Keeps Drinks Cold 24 hr/Hot 12 hr - Easy Maintenance - Gym/On-the-Go, Cobalt" brand: "thermoflask" price: "¥10702" currency: JPY in_stock: true reviews_count: 13 category: "Thermo Flask" url: https://www.desertcart.jp/products/91534445-thermoflask-40-oz-double-wall-vacuum-insulated-stainless-steel-water store_origin: JP region: Japan --- # Leakproof & spillproof seal 12 hr hot retention 24 hr cold retention ThermoFlask 40 oz Double Wall Vacuum Insulated Stainless Steel Water Bottle - Reusable with Leakproof Chug & Straw Lids - Keeps Drinks Cold 24 hr/Hot 12 hr - Easy Maintenance - Gym/On-the-Go, Cobalt **Brand:** thermoflask **Price:** ¥10702 **Availability:** ✅ In Stock ## Summary > 💧 Stay cool, stay hot, stay unstoppable with ThermoFlask. ## Quick Answers - **What is this?** ThermoFlask 40 oz Double Wall Vacuum Insulated Stainless Steel Water Bottle - Reusable with Leakproof Chug & Straw Lids - Keeps Drinks Cold 24 hr/Hot 12 hr - Easy Maintenance - Gym/On-the-Go, Cobalt by thermoflask - **How much does it cost?** ¥10702 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/91534445-thermoflask-40-oz-double-wall-vacuum-insulated-stainless-steel-water) ## Best For - thermoflask enthusiasts ## Why This Product - Trusted thermoflask brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Endure:** Premium 18/8 stainless steel resists dents and impact, delivering durability that stands up to your busiest days. - • **Effortless Clean-Up:** Dishwasher-safe bottle and lids make maintenance a breeze, so you spend less time cleaning and more time conquering. - • **Dual Lid Versatility:** Switch effortlessly between a chug lid and a straw lid to match your mood and activity — gym, commute, or desk grind. - • **Zero-Spill Confidence:** Leakproof design means no more soggy bags or ruined gear — just pure, worry-free hydration on the move. - • **All-Day Temperature Control:** Keeps your drinks icy cold for 24 hours or piping hot for 12 — hydration that keeps pace with your hustle. ## Overview The ThermoFlask 40 oz water bottle features double-wall vacuum insulation that keeps beverages cold for 24 hours and hot for 12. Crafted from durable 18/8 food-grade stainless steel, it includes two interchangeable lids—a chug lid and a straw lid—for versatile hydration. Its leakproof design ensures spill-free transport, while dishwasher-safe components simplify cleaning, making it the perfect companion for active professionals seeking reliable, stylish hydration on the go. ## Description The ThermoFlask 40 oz Double Wall Vacuum Insulated Stainless Steel Water Bottle is the perfect companion for hydration enthusiasts seeking versatility while on the go. This insulated water bottle features both a chug lid and a straw lid to suit different drinking preferences, making it an ideal choice for various activities. Engineered from premium 18/8 food-grade stainless steel, this high-quality water bottle promises long-lasting performance and reliability. Its leakproof design ensures that the bottle remains spill-free, providing peace of mind when stored in backpacks or gym bags. With its advanced vacuum insulation, this bottle keeps beverages cold for up to 24 hours and hot for 12 hours, making it an essential tool for both hot and cold beverages. Offering easy maintenance, each component of this stainless steel insulated water bottle is dishwasher-safe and straightforward to hand wash, ensuring a fuss-free cleaning experience. The ThermoFlask water bottle is not just another gym water bottle but a durable thermal water bottle that keeps your drink fresh throughout the day. Perfect for adults who want a safe, reusable water bottle for travel, sports, or everyday hydration. Enhance your routine with this versatile and reliable insulated stainless steel water bottle, and experience the difference in your hydration habits. Review: More expensive than other insulated bottles because it's worth it -- the best you can buy - I purchased a 40 oz ThermoFlask because the 24 oz bottle I have needed refilling frequently in order to enjoy chilled water. ThermoFlask water bottles do the one thing I need them for very well: They keep ice from melting too quickly. I use it in the sauna at my gym and it retains cold extremely well. It's durable and the being able to choose between two lid designs is very useful. But durability does not mean it can withstand being dropped frequently, so don't be clumsy. And if you're they type who needs to run an insulated water bottle through the dishwasher, buy another, or buy this one and don't be lazy, just wash it by hand. Honestly, some desertcart customers complain too much about stupid stuff. This insulated flask is perhaps the best on the market, and as a result this is reflected in the price. If you want a water bottle that will last and work extremely well, buy this one. It's worth it. Review: Good for keeping you hydrated while pregnant 👌🏻 - Arrived on time, and made well. Sturdy, great size, easy to hold handle, and comes with as it shows two different spout options. Keeps drinks cold for hours, and the color is a gorgeous purple. 10/10 would recommend, and would buy again. ## Features - STAY HYDRATED WITH ULTIMATE VERSATILITY: Keep drinks cold or hot for hours with the insulated ThermoFlask 40 oz bottle. Perfect for an active lifestyle, it includes two interchangeable lids — a chug lid and easy-access straw lid. - SIP WITH CONFIDENCE IN DURABILITY: Crafted from premium 18/8 food-grade stainless steel, the ThermoFlask water bottle delivers long-lasting performance and a clean, pure taste. Resistant to dents and impact, it’s built to handle any adventure. - EXPERIENCE FREEDOM FROM SPILLS: ThermoFlask stainless steel bottle with leakproof lid keeps drinks secure. Perfect for bags or bikes, the tight seal prevents leaks and spills, keeping your belongings dry. - 24 HOURS COLD, 12 HOURS HOT: The insulated ThermoFlask water bottle keeps drinks cold up to 24 hours and hot up to 12 with double-wall vacuum insulation, ensuring your beverages stay perfectly chilled or warm anywhere. - EFFORTLESS CLEANING FOR BUSY LIFESTYLES: ThermoFlask water bottle and lids are dishwasher-safe, making cleaning quick and simple—perfect for active lifestyles. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00JEZ20GO | | Additional Features | Double Wall, Leakproof, Sweatproof, Vacuum Insulation | | Age Range (Description) | Adult | | Age Range Description | Adult | | Base Diameter | 3.62 inches | | Best Sellers Rank | #1,714 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #47 in Insulated Bottles | | Brand | ThermoFlask | | Brand Name | ThermoFlask | | Cap Type | Sports Cap | | Capacity | 40 fluid ounces | | Color | Cobalt | | Customer Reviews | 4.7 out of 5 stars 30,157 Reviews | | Global Trade Identification Number | 00885395500645 | | Included Components | Water Bottle, Spout Lid, Straw Lid | | Item Dimensions W x H | 4.6"W x 14"H | | Item Type Name | Water Bottle with Two Lids | | Item Weight | 1.2 pounds | | Manufacturer | Thermoflask | | Material Type | Stainless Steel | | Model Name | Insulated Stainless Steel | | Number of Items | 1 | | Product Care Instructions | Dishwasher Safe | | Recommended Uses For Product | Water | | Special Feature | Double Wall , Leakproof, Sweatproof, Vacuum Insulation | | Theme | Sport | | UPC | 885395500645 | | Unit Count | 1 Count | ## Product Details - **Brand:** ThermoFlask - **Capacity:** 40 fluid ounces - **Color:** Cobalt - **Recommended Uses For Product:** Water - **Special Feature:** Double Wall, Leakproof, Sweatproof, Vacuum Insulation ## Images ![ThermoFlask 40 oz Double Wall Vacuum Insulated Stainless Steel Water Bottle - Reusable with Leakproof Chug & Straw Lids - Keeps Drinks Cold 24 hr/Hot 12 hr - Easy Maintenance - Gym/On-the-Go, Cobalt - Image 1](https://m.media-amazon.com/images/I/614w2MR3YpL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Is the 24oz small?** A: It's about the size around of a 16 oz plastic bottle of soda, but taller. It fits in my cup holder of my car. Don't think the larger one would. Since it keeps ice so well, I often refill it with water on the ice still in it. I don't consider it small or large. Like Goldilocks said, It's Just Right. **Q: Do you sell the chug straw lid separately?** A: I had ordered a couple different 24oz pictured with chug lids, but I received straw lids. What I have eventually purchased was a 24 oz with both lids, to make sure I got the Chug lid! So ask your questions to make sure you're getting the right product :-) **Q: Can I purchase a replacement straw lid for the Thermoflask?** A: Yes. I just went through this for the 40oz Thermoflasks I purchased at Costco. The straw lids are not sold by ThermoFlask directly (on their website) but it is sold by their manufacturer, Takeya, for $10. Www.takeyausa.com **Q: Is the straw lid insulated?** A: Good question! The leak-proof straw lid will keep your drinks cold for up to 24 hours and hot for up to 12. It is not insulated. ## Customer Reviews ### ⭐⭐⭐⭐⭐ More expensive than other insulated bottles because it's worth it -- the best you can buy *by D***N on August 31, 2026* I purchased a 40 oz ThermoFlask because the 24 oz bottle I have needed refilling frequently in order to enjoy chilled water. ThermoFlask water bottles do the one thing I need them for very well: They keep ice from melting too quickly. I use it in the sauna at my gym and it retains cold extremely well. It's durable and the being able to choose between two lid designs is very useful. But durability does not mean it can withstand being dropped frequently, so don't be clumsy. And if you're they type who needs to run an insulated water bottle through the dishwasher, buy another, or buy this one and don't be lazy, just wash it by hand. Honestly, some Amazon customers complain too much about stupid stuff. This insulated flask is perhaps the best on the market, and as a result this is reflected in the price. If you want a water bottle that will last and work extremely well, buy this one. It's worth it. ### ⭐⭐⭐⭐⭐ Good for keeping you hydrated while pregnant 👌🏻 *by D***N on September 3, 2026* Arrived on time, and made well. Sturdy, great size, easy to hold handle, and comes with as it shows two different spout options. Keeps drinks cold for hours, and the color is a gorgeous purple. 10/10 would recommend, and would buy again. ### ⭐⭐⭐⭐⭐ Really high quality at a lower cost! *by P***R on August 18, 2026* Love this water bottle especially for the price! I love that it comes with two different lids, one that pulls up and has a straw inside and another that you can open like you would a disposable water bottle but it’s much larger. It also comes with two straws inside of one, which is useful when you want to clean one and still use your water bottle. It’s definitely leak proof which I love a lot because higher end water bottles that I’ve used in the past did not hold up. I also think it’s durable and very well insulated, I can fill my water bottle with ice in the evening and there’s still ice into early afternoon the next day. It also doesn’t smell or taste weird or metallic-like, which my Stanley did. I also like that the lid offers a way to carry it and I don’t have to worry about the handle falling off like my Stanley did which made it hard to grip onto unlike this water bottle! I definitely think it’s a steal for the price and quality!! ## Frequently Bought Together - ThermoFlask 40 oz Double Wall Vacuum Insulated Stainless Steel Water Bottle with Spout and Straw Lids, Cobalt - Flaskars Protective Silicone Boot for 12oz - 40 oz Hydroflask Water Bottles Anti-Slip Bottom Stanley Sleeve Cover Bumper --- ## 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.jp/products/91534445-thermoflask-40-oz-double-wall-vacuum-insulated-stainless-steel-water](https://www.desertcart.jp/products/91534445-thermoflask-40-oz-double-wall-vacuum-insulated-stainless-steel-water) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-18*