--- product_id: 476502904 title: "HYDRO FLASK - Water Bottle 621 ml (21 oz) with Flex Straw Cap - Vacuum Insulated Stainless Steel Reusable Water Bottle - Leakproof Lid - Hot and Cold Drinks - Standard Mouth - BPA-Free - Black" brand: "hydro flask" price: "391 zł" currency: PLN in_stock: true reviews_count: 5 category: "Hydro Flask" url: https://www.desertcart.pl/products/476502904-hydro-flask-water-bottle-621-ml-21-oz-with-flex store_origin: PL region: Poland --- # 100% leakproof flex straw cap Keeps drinks hot up to 12h Keeps drinks cold up to 24h HYDRO FLASK - Water Bottle 621 ml (21 oz) with Flex Straw Cap - Vacuum Insulated Stainless Steel Reusable Water Bottle - Leakproof Lid - Hot and Cold Drinks - Standard Mouth - BPA-Free - Black **Brand:** hydro flask **Price:** 391 zł **Availability:** ✅ In Stock ## Summary > 💦 Stay cool, stay hot, stay unstoppable with Hydro Flask. ## Quick Answers - **What is this?** HYDRO FLASK - Water Bottle 621 ml (21 oz) with Flex Straw Cap - Vacuum Insulated Stainless Steel Reusable Water Bottle - Leakproof Lid - Hot and Cold Drinks - Standard Mouth - BPA-Free - Black by hydro flask - **How much does it cost?** 391 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/476502904-hydro-flask-water-bottle-621-ml-21-oz-with-flex) ## Best For - hydro flask enthusiasts ## Why This Product - Trusted hydro flask brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Sleek, Backpack-Ready Design:** Compact 621 ml size with powder coat finish slides effortlessly into your daily carry. - • **Durable Pro-Grade Stainless Steel:** 18/8 stainless steel ensures no flavor transfer and long-lasting use. - • **Sip & Go with Leakproof Flex Straw:** One-handed hydration on the move with a spill-proof, easy-sip straw cap. - • **TempShield Tech for All-Day Freshness:** Double-wall vacuum insulation locks in perfect temps—cold for 24h, hot for 12h. - • **Safe, Sustainable & Dishwasher Friendly:** BPA-free, toxin-free, and dishwasher safe for worry-free, eco-conscious hydration. ## Overview The Hydro Flask 621 ml water bottle features TempShield double-wall vacuum insulation that keeps beverages cold for 24 hours and hot for 12 hours. Crafted from durable 18/8 pro-grade stainless steel with a leakproof flex straw cap, it offers one-handed hydration on the go. Its sleek, powder-coated design fits comfortably in backpacks and is BPA-free, dishwasher safe, and backed by a limited lifetime warranty—perfect for professionals who demand style, performance, and sustainability in their daily hydration. ## Description We make thoughtful, beautifully designed gear that moves people. Towards nature. Towards happy. And towards each other. Because life is an adventure and we’re glad to be with you for every step, sip and smile along the way. Surrounded by mountains, rivers and lakes, HYDRO FLASK HQ is literally nestled into a Pacific Northwest wonderland– Bend, Oregon. Where we are from, is part of who we are and it’s in our DNA. It has shaped our products, people and what we’re about as a company.Not only is the outdoors our everything, but we love to share all kinds of life experiences with others, whether it's a day at the office or at the university or a yoga class. That is our purpose and our heartbeat. Whatever you need to help you be outside living your best life, we're in. The inspiration behind every product we design is Mother Nature. There’s never anything extra – every choice is made for a reason. Keep it strikingly simple. From product innovation to colour leadership - simplicity drives all. Review: La marque Hydroflask est mondialement connu, je me suis laissé tenter par cette gourde isotherme qui ma foi est très utile par temps chaud ou froid, peu importe, on peut l’emmener partout, pas encombrant donc parfait. Review: Flaskan isolerar toppenbra och sugröret funkar som utlovat samt är 100% läckagefri. Enda nackdelen, för mig, är att flödet inte är så högt i sugröret. Så är man törstig tar det tid att få i sig tillräcklig mängd vatten. Men tror det är väldigt individuellt vad man föredrar. ## Features - One-handed hydration: the double-wall vacuum insulated technology keeps your drink at the perfect temperature no matter where your day takes you. Enjoy a leakproof flex straw cap to sip your drink at optimal temperature, while being on the move. This water bottle is just the right size for staying hydrated before, during and after activity - Benefit from a perfect drinking temperature for hours: our TempShield vacuum insulated technology, combined with our Honeycomb insulated cap, guards the temperature of your drink and eliminates condensation. It keeps beverages cold for up to 24 hours and hot for up to 12 hours. So relax and enjoy your drink wherever you go - Practical shape and sustainable construction built to last: this water bottle is made out of 18/8 pro-grade stainless steel to ensure durability, pure taste and no flavour transfer. Its colour last powder coat and cylindrical shape make it nice to hold, easy to slide in and out of a backpack and comfortable to carry - Leakproof, BPA-Free and dishwasher safe: transport your water bottle without any worry, thanks to our leakproof flex straw cap (when closed) and practical carry strap. For your safety and comfort, this bottle is BPA-Free, Toxin-Free and dishwasher safe. Our 710 ml standard mouth bottle will keep you well-hydrated throughout the day - 100% Customer and product satisfaction warranty: We stand behind our products and have great faith in our products. HYDRO FLASK is committed to high standards of durable and robust materials. HYDRO FLASK guarantees this product with a limited lifetime warranty against manufacturer defects ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09SBS12KG | | Additional Features | Dishwasher Safe, Leakproof | | Age Range Description | Adult | | Base Diameter | 7.3 Centimeters | | Brand Name | Hydro Flask | | Cap Type | Straw Cap | | Capacity | 21 Fluid Ounces | | Color | Black | | Customer Reviews | 4.6 4.6 out of 5 stars (155) | | Global Trade Identification Number | 00810028842410 | | Included Components | straw, water bottle | | Is Oven Safe | No | | Is the item dishwasher safe? | Yes | | Is the item microwaveable? | No | | Item Dimensions W x H | 7.2W x 7.2H centimeters | | Item Type Name | Flask | | Item Weight | 0.32 Kilograms | | Item height | 7.2 centimeters | | Manufacturer | Hydro Flask | | Material Type | Stainless Steel | | Model Name | Flex Straw Cap | | Number of Items | 1 | | Pattern | Solid | | Product Care Instructions | Machine Wash | | Recommended Uses For Product | Water | | Theme | Sport | | UPC | 810028842410 | | Unit Count | 1 Count | | With Lid | Yes | ## Product Details - **Brand:** Hydro Flask - **Capacity:** 21 Fluid Ounces - **Colour:** Black - **Recommended uses for product:** Water - **Special features:** Dishwasher Safe, Leakproof ## Images ![HYDRO FLASK - Water Bottle 621 ml (21 oz) with Flex Straw Cap - Vacuum Insulated Stainless Steel Reusable Water Bottle - Leakproof Lid - Hot and Cold Drinks - Standard Mouth - BPA-Free - Black - Image 1](https://m.media-amazon.com/images/I/41qbO5gntPL.jpg) ![HYDRO FLASK - Water Bottle 621 ml (21 oz) with Flex Straw Cap - Vacuum Insulated Stainless Steel Reusable Water Bottle - Leakproof Lid - Hot and Cold Drinks - Standard Mouth - BPA-Free - Black - Image 2](https://m.media-amazon.com/images/I/71RnmZh-rLL.jpg) ![HYDRO FLASK - Water Bottle 621 ml (21 oz) with Flex Straw Cap - Vacuum Insulated Stainless Steel Reusable Water Bottle - Leakproof Lid - Hot and Cold Drinks - Standard Mouth - BPA-Free - Black - Image 3](https://m.media-amazon.com/images/I/71gZ5E3MBvL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***S on 26 February 2026* La marque Hydroflask est mondialement connu, je me suis laissé tenter par cette gourde isotherme qui ma foi est très utile par temps chaud ou froid, peu importe, on peut l’emmener partout, pas encombrant donc parfait. ### ⭐⭐⭐⭐ Review *by H***. on 2 November 2024* Flaskan isolerar toppenbra och sugröret funkar som utlovat samt är 100% läckagefri. Enda nackdelen, för mig, är att flödet inte är så högt i sugröret. Så är man törstig tar det tid att få i sig tillräcklig mängd vatten. Men tror det är väldigt individuellt vad man föredrar. ### ⭐⭐⭐⭐⭐ Review *by M***A on 31 August 2025* Very cute ## Frequently Bought Together - HYDRO FLASK - Water Bottle 621 ml (21 oz) with Flex Straw Cap - Vacuum Insulated Stainless Steel Reusable Water Bottle - Leakproof Lid - Hot and Cold Drinks - Standard Mouth - BPA-Free - Black - Hydro Flask Flex Boot - Accessory Silicone Water Bottle Protector - Dishwasher Safe, BPA-Free, Non-Toxic Small - Hydro Flask Standard Mouth Lids- Accessory for Standard Mouth Water Bottle --- ## 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.pl/products/476502904-hydro-flask-water-bottle-621-ml-21-oz-with-flex](https://www.desertcart.pl/products/476502904-hydro-flask-water-bottle-621-ml-21-oz-with-flex) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-26*