--- product_id: 355445730 title: "Thermoflask Insulated Water Bottle 18 oz 50055" brand: "thermoflask" price: "€ 61.99" currency: EUR in_stock: true reviews_count: 10 category: "Thermo Flask" url: https://www.desertcart.hr/products/355445730-thermoflask-insulated-water-bottle-18-oz-50055 store_origin: HR region: Croatia --- # Leak-proof lids 12 hrs hot 24 hrs ice-cold Thermoflask Insulated Water Bottle 18 oz 50055 **Brand:** thermoflask **Price:** € 61.99 **Availability:** ✅ In Stock ## Summary > 💦 Stay cool, stay hot, stay ahead—hydrate like a pro with ThermoFlask! ## Quick Answers - **What is this?** Thermoflask Insulated Water Bottle 18 oz 50055 by thermoflask - **How much does it cost?** € 61.99 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/355445730-thermoflask-insulated-water-bottle-18-oz-50055) ## 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 - • **Dual-Lid Versatility:** Switch effortlessly between a leak-proof chug lid and an enhanced straw lid for hands-free hydration on the go. - • **Durable & Flavor-Safe:** BPA-free stainless steel resists rust, sweat, and flavor transfer—pure taste every sip. - • **Sustainable Hydration:** Eco-conscious reusable bottle that elevates your hydration game while reducing single-use plastic waste. - • **Adventure-Ready Design:** Compact 18 oz size fits most cup holders and backpacks, perfect for your daily hustle or weekend escapes. - • **All-Day Temperature Lock:** Double-wall vacuum insulation keeps drinks icy cold for 24 hours or piping hot for 12 hours—no compromises. ## Overview The ThermoFlask 18 oz insulated water bottle features double-wall vacuum insulation that keeps beverages cold for 24 hours and hot for 12 hours. Crafted from BPA-free stainless steel, it includes two leak-proof lids—a chug lid and an improved straw lid—for versatile, one-handed drinking. Designed for active lifestyles, its compact size fits most cup holders and backpacks, making it ideal for commuting, outdoor adventures, and sustainable daily hydration. ## Description Keep your beverages cold all day without a cooler (or hot without a microwave!) Our double-wall vacuum insulated stainless steel bottles prevent outside temperatures from affecting the inside beverage temperature so your drink stays just the way you like it; all day long. Great for everyday adventures or outdoor activities like hiking, camping, biking, sports, picnics, and more. Drink the way you want with easy, controlled one-handed drinking. Chug or straw? Your choice. You get both! Note: For maximum flow, please ensure the straw lid is fully extended. Review: You must buy if you are looking for great partners for your daughter in school - Great for school day. Every great item. It comes with spare straws and another lids for replacement. Review: Keeps drink cold for longtime - Keeps water cold for long time even when i keep it in the hot car for 6 hours ## Features - Vacuum Insulation: The ThermoFlask keeps beverages ice-cold for 24 hrs, and hot for up to 12 hrs with double-wall and vacuum insulation. This BPA Free stainless steel water bottle won't transfer flavors, won't sweat and does not rust. - Chug and Straw Lid: This water bottle comes with 2 lids; an innovative leak-proof Chug lid and a newly improved straw lid that has been enhanced for better flow. Both allow easy one-handed or hands free sipping - Daily Adventure: Adventure awaits with ThermoFlask insulated stainless steel water bottles. They help you stay refreshed and hydrated for an active lifestyle. Soups and other hot liquids stay heated for hours; cold beverages keep cool throughout the day. - Premium Hydration: Our line of insulated hydration solutions come in 14 to 64 oz sizes with a variety of colors. Our insulated water bottles are a convenient size that fits in most cup holders, backpack pockets and in your hand when adventure calls. - ThermoFlask Quality: Whether you want a reusable water bottle for camping and hiking, an insulated commuter cup, or just want to hydrate sustainably, ThermoFlask has a stainless steel water bottle for you ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07RWKM7L1 | | Additional Features | Double Wall, Leakproof, Vacuum Insulated | | Age Range Description | Adult | | Age range (description) | Adult | | Base Diameter | 2.91 Inches | | Best Sellers Rank | #40,776 in Sporting Goods ( See Top 100 in Sporting Goods ) #1,737 in Sports Water Bottles | | Brand | ThermoFlask | | Brand Name | ThermoFlask | | Cap Type | Straw Cap | | Capacity | 18 Fluid ounces | | Color | Black | | Colour | Black | | Customer Reviews | 4.7 out of 5 stars 51,474 Reviews | | Global Trade Identification Number | 00885395500553 | | Included Components | Water Bottle With Lid | | Is Oven Safe | No | | Is the item dishwasher safe? | Yes | | Is the item microwaveable? | No | | Item Dimensions W x H | 23H centimeters | | Item Type Name | Water Bottle with Two Lids | | Item Weight | 313 g | | Manufacturer | Thermoflask | | Material Type | Stainless Steel | | Model Name | Insulated Stainless Steel | | Number of Items | 1 | | Product Care Instructions | Hand Wash Only | | Recommended Uses For Product | Water | | Recommended uses for product | Water | | Special features | Double Wall , Leakproof, Vacuum Insulated | | Theme | Sport | | UPC | 885395500553 | | With Lid | Yes | ## Product Details - **Brand:** ThermoFlask - **Capacity:** 18 Fluid Ounces - **Colour:** Black - **Recommended uses for product:** Water - **Special features:** Double Wall, Leakproof, Vacuum Insulated ## Images ![Thermoflask Insulated Water Bottle 18 oz 50055 - Image 1](https://m.media-amazon.com/images/I/61Czc9AZ1oL.jpg) ![Thermoflask Insulated Water Bottle 18 oz 50055 - Image 2](https://m.media-amazon.com/images/I/61uU1ddtrmL.jpg) ![Thermoflask Insulated Water Bottle 18 oz 50055 - Image 3](https://m.media-amazon.com/images/I/614zgwMaJ8L.jpg) ![Thermoflask Insulated Water Bottle 18 oz 50055 - Image 4](https://m.media-amazon.com/images/I/61HmawahtgL.jpg) ![Thermoflask Insulated Water Bottle 18 oz 50055 - Image 5](https://m.media-amazon.com/images/I/61rlc9jnmtL.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 ### ⭐⭐⭐⭐⭐ You must buy if you are looking for great partners for your daughter in school *by A***A on 8 July 2025* Great for school day. Every great item. It comes with spare straws and another lids for replacement. ### ⭐⭐⭐⭐⭐ Keeps drink cold for longtime *by S***H on 26 September 2022* Keeps water cold for long time even when i keep it in the hot car for 6 hours ### ⭐⭐⭐⭐⭐ Quality stuff *by F***D on 10 March 2021* The bottle was as described and delivered before the promised time . ## Frequently Bought Together - ThermoFlask Bottle with Chug Lid & Straw Lid - Insulated Stainless Steel Water Bottle with Leak-Proof Lids - Dishwasher-Safe Reusable Bottle & Lids - Durable Bottle, 2 Straws & 2 Lids - 18 oz, Black - ThermoFlask Kids Bottle with Straw Lid - Durable & Dishwasher-Safe Water Bottles & Lids - Leak-Proof Bottle Lid Design - Reusable Water Bottles for Everyday Use - 16 oz, Red/Blue (2 Pack) --- ## 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.hr/products/355445730-thermoflask-insulated-water-bottle-18-oz-50055](https://www.desertcart.hr/products/355445730-thermoflask-insulated-water-bottle-18-oz-50055) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-15*