--- product_id: 40929274 title: "Hydro Flask Water Bottle - Insulated Stainless Steel - Non Spill, Leakproof in 21 Oz Black" brand: "hydro flask" price: "41.21 DT" currency: TND in_stock: false reviews_count: 13 url: https://www.desertcart.tn/products/40929274-hydro-flask-water-bottle-insulated-stainless-steel-non-spill-leakproof store_origin: TN region: Tunisia --- # Leakproof Flex Cap 12H Hot Retention 24H Cold Retention Hydro Flask Water Bottle - Insulated Stainless Steel - Non Spill, Leakproof in 21 Oz Black **Brand:** hydro flask **Price:** 41.21 DT **Availability:** ❌ Out of Stock ## Summary > 💧 Stay cool, stay hot, stay unstoppable with Hydro Flask. ## Quick Answers - **What is this?** Hydro Flask Water Bottle - Insulated Stainless Steel - Non Spill, Leakproof in 21 Oz Black by hydro flask - **How much does it cost?** 41.21 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/40929274-hydro-flask-water-bottle-insulated-stainless-steel-non-spill-leakproof) ## 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 - • **Effortless Clean-Up:** Dishwasher safe and built to retain vibrant color, so your Hydro Flask stays fresh and ready for every adventure. - • **Sleek & Travel-Ready:** Cupholder-friendly design and flexible handle make it the perfect companion for your daily grind or weekend escapes. - • **Pure Taste, Every Sip:** Pro-grade stainless steel ensures no flavor transfer — your water tastes like water, always. - • **Zero Spill, Zero Stress:** Leakproof Flex Cap means no more bag disasters — toss it in and go, worry-free. - • **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 Hydro Flask 21 oz Standard Mouth Flex Cap bottle features double-wall TempShield insulation that keeps beverages cold for 24 hours and hot for 12. Its leakproof design and cupholder-friendly shape make it ideal for on-the-go lifestyles. Made from durable stainless steel, it preserves pure taste without flavor transfer and is dishwasher safe for easy maintenance. Backed by a lifetime warranty, this sleek black bottle is a top choice for professionals seeking reliable hydration. ## Description Our unique double wall vacuum insulation protects temperature for hours. Cold drinks stay icy cold and hot drinks stay piping hot so you can stay refreshed for any adventure. Made with 18/8 pro-grade stainless steel to ensure pure taste and no flavor transfer — and the durable construction stands up to whatever life brings. Our proprietary powder coat means an easy-grip, sweat-free, and extra-durable bottle that you can take anywhere. All new purchases from authorized Hydro Flask retailers come with a limited lifetime coverage against manufacturer defects. Visit our official website for more information. Strong yet flexible, the Standard Mouth Flex Cap is the perfect companion for spontaneous campouts, epic road trips, and everything in between. Made with stainless steel pivots and an easy-to-carry strap, this cap has Honeycomb Insulation to help keep your drinks cold for up to 24 hours or hot up to 12. Pair it with any of the Hydro Flask Standard Mouth bottles. From mountain trails to morning yoga class, the Standard Mouth Insulated Sport Cap lets you hydrate one-handed and on the fly. It’s the first insulated sport cap specifically designed to keep water in your Hydro Flask bottle ice cold, sip after sip. ## Features - 21 OZ BLACK BOTTLE: Fill and refill with the Hydro Flask Standard Mouth insulated water bottle with leakproof cap. With a comfortable, flexible handle, the bottle is easy to grab and take anywhere. Double-wall insulation keeps drinks cold up to 24 hours and hot for 12. - 24 HOURS COLD. 12 HOURS HOT: The insulated water bottle keeps drinks cold for 24 hours and hot for 12 thanks to double-wall vacuum insulation. TempShield insulation is designed to be lightweight and efficient temperature retention, keeping contents ready to sip. - LEAKPROOF: Say goodbye to leaky water bottles. The Hydro Flask Flex Cap is leakproof when closed. Toss it into your bag without worry. - FITS CUPHOLDERS: The cupholder-friendly design means your bottle fits seamlessly in most cupholders. Designed for seamless cupholder cohabitation, it's right at home on the open road, on the sidelines, in a pack or wherever you need to set your sips. - PURE TASTE: Durable pro-grade stainless steel ensures pure taste and no leftover flavor transfer. So, today's water won't have any taste of yesterday's iced tea. - DISHWASHER SAFE: Easy to use and easy to clean, just toss the lid and bottles into the dishwasher. Designed to keep bright color, being dishwasher safe means your favorite Hydro Flask is always at-the-ready. ## Technical Specifications | Specification | Value | |---------------|-------| | Additional Features | Cold 24 Hours, Dishwasher Safe, Leakproof | | Age Range Description | Adult | | Asin | B01KXHIWL8 | | Base Diameter | 7.1 centimeters | | Best Sellers Rank | #529 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #49 in Water Bottles #112 in Insulated Bottles | | Brand Name | Hydro Flask | | Cap Type | Flex Cap | | Capacity | 21 fluid ounces | | Color | Black | | Customer Reviews | 4.7 4.7 out of 5 stars (14,477) 4.7 out of 5 stars | | Global Trade Identification Number | 00810497025680 | | Included Components | Lid | | Item Dimensions W X H | 1.12"W x 4.37"H | | Item Type Name | Water Bottle | | Item Weight | 22.68 g | | Manufacturer | Hydro Flask | | Manufacturer Warranty Description | LIFETIME | | Material Type | STEEL | | Model Name | Standard Mouth Flex Cap Bottle | | Number Of Items | 1 | | Pattern | Solid | | Product Care Instructions | Hand Wash Only | | Recommended Uses For Product | Water | | Theme | Sport | | Unit Count | 1 Count | | Upc | 810497025680 | ## Product Details - **Brand:** Hydro Flask - **Capacity:** 21 Fluid Ounces - **Color:** Black - **Recommended Uses For Product:** Water - **Special Feature:** Cold 24 Hours, Dishwasher Safe, Leakproof ## Images ![Hydro Flask Water Bottle - Insulated Stainless Steel - Non Spill, Leakproof in 21 Oz Black - Image 1](https://m.media-amazon.com/images/I/61zTQE7uD5L.jpg) ![Hydro Flask Water Bottle - Insulated Stainless Steel - Non Spill, Leakproof in 21 Oz Black - Image 2](https://m.media-amazon.com/images/I/61jQMycI9OL.jpg) ![Hydro Flask Water Bottle - Insulated Stainless Steel - Non Spill, Leakproof in 21 Oz Black - Image 3](https://m.media-amazon.com/images/I/71ag0+QibmL.jpg) ![Hydro Flask Water Bottle - Insulated Stainless Steel - Non Spill, Leakproof in 21 Oz Black - Image 4](https://m.media-amazon.com/images/I/71IQk7CuUoL.jpg) ![Hydro Flask Water Bottle - Insulated Stainless Steel - Non Spill, Leakproof in 21 Oz Black - Image 5](https://m.media-amazon.com/images/I/81qoEwM3wEL.jpg) ## Available Options This product comes in different **Color, Style** options. ## Questions & Answers **Q: Re Hydro Flask 24", what does "flex lid" mean?** A: no, you can't. if you watch the video it shows that you have to remove the lid to drink. i think the "flex" is in fact that the handle folds down, instead of being "fixed". you can get a lid that has a pop-up straw. **Q: Ok so does it come with little stickers?** A: Hi - Wendy here from Tall Ridge, the exclusive authorized seller of Hydro Flask products on Amazon - Thank you for your inquiry! Our Hydro Flask products do not come with stickers. I hope that answers your question. **Q: Curious... is the bottle supposed to be perfectly round all the way up and down? i just received mine from amazon and it is not. it feels oblong.** A: Yes, it should be perfectly cylindrical (round) all the way up. If it's not, there is an issue, and I would think that the company would take care of it. To tell if it's in fact round, remove the cap, make sure it's empty, place it on its side on a flat surface, and roll it. **Q: I just bought this hydroflask in the color olive. Is it normal for the lid to have to be forced to close all the way? It doesnt close easily** A: How did this work out for you? I'm experiencing same problem? I know it's not normal as I have been using this brand for a couple years now. Did u keep and use? ## Customer Reviews ### ⭐⭐⭐⭐⭐ my cute and reliable bottle! *by on Reviewed in the United States April 14, 2026* This water bottle lives up to the hype. It keeps drinks cold for an impressively long time—literally all day—and I’ve even had ice still intact the next morning. The build quality is excellent, and it feels durable enough to handle daily use without worry. I also appreciate the sleek design and how easy it is to clean. It’s become something I take everywhere with me, and it genuinely encourages me to stay more hydrated throughout the day. A solid investment in both quality and functionality. ### ⭐⭐⭐⭐⭐ Superb Insulation! *by on Reviewed in the United States June 23, 2026* Great bottle! Super insulated and durable. Keeps my coffee/tea scalding hot for 8+ hours. Great quality and nice price. Decent size, will hold a large cup of coffee. Not the largest cup, it’s definitely good for your daily cup of coffee/tea. ### ⭐⭐⭐⭐⭐ High quality and useful! *by on Reviewed in the United States June 7, 2026* Really nice bottle, it keeps the water cold all day, and has no aftertaste, fits perfectly in the cup holder.Easy to clean and good looking color.It isn’t too long or heavy so the portability is decent. ## Frequently Bought Together - Hydro Flask Standard Flex Cap Black 21 Oz - 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.tn/products/40929274-hydro-flask-water-bottle-insulated-stainless-steel-non-spill-leakproof](https://www.desertcart.tn/products/40929274-hydro-flask-water-bottle-insulated-stainless-steel-non-spill-leakproof) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-18*