--- product_id: 40929274 title: "Water Bottle - Insulated Stainless Steel - Non Spill, Leakproof in 21 Oz Black" brand: "hydro flask" price: "¥15350" currency: JPY in_stock: true reviews_count: 13 url: https://www.desertcart.jp/products/40929274-water-bottle-insulated-stainless-steel-non-spill-leakproof-in-21 store_origin: JP region: Japan --- # Leakproof Flex Cap 12H Hot Retention 24H Cold Retention Water Bottle - Insulated Stainless Steel - Non Spill, Leakproof in 21 Oz Black **Brand:** hydro flask **Price:** ¥15350 **Availability:** ✅ In Stock ## Summary > 💧 Stay cool, stay hot, stay unstoppable with Hydro Flask. ## Quick Answers - **What is this?** Water Bottle - Insulated Stainless Steel - Non Spill, Leakproof in 21 Oz Black by hydro flask - **How much does it cost?** ¥15350 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/40929274-water-bottle-insulated-stainless-steel-non-spill-leakproof-in-21) ## 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 Buy Hydro Flask Water Bottle - Insulated Stainless Steel - Non Spill, Leakproof in 21 Oz Black: Thermoses - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Keeps liquid cold and convenient size - I love my hydro-flask. I got one for each of my family members for vacation. Perfect size and heavy duty. Review: A Solid Flask - I like the quality build of this flask. The top fits well and does not leak. There are only two pieces, the flask and the cap, so nothing to fiddle with when cleaning the unit. It does a great job of maintaining the temperature of whatever I put in it. My only reservation is that the flask is a little heavy. I was accustomed to uninsulated plastic containers, with the added pack weight being primarily the fluid in the container. It didn't occur to me that an insulated metal flask might have an empty weight of 0.75 pounds empty, but it does. This may not matter for a casual trip, but for a backpacking excursion it does. I still really like the HydroFlask and plan to use it often. The product is well designed and built. ## 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 | |---------------|-------| | ASIN | B01KXHIWL8 | | Additional Features | Cold 24 Hours, Dishwasher Safe, Leakproof | | Age Range Description | Adult | | Base Diameter | 7.1 centimeters | | Best Sellers Rank | #668 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #51 in Water Bottles #89 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 (14,562) | | 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 | | UPC | 810497025680 | | Unit Count | 1 Count | ## 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 ![Water Bottle - Insulated Stainless Steel - Non Spill, Leakproof in 21 Oz Black - Image 1](https://m.media-amazon.com/images/I/61FHMOoYNBL.jpg) ## 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 ### ⭐⭐⭐⭐⭐ Keeps liquid cold and convenient size *by A***R on May 19, 2026* I love my hydro-flask. I got one for each of my family members for vacation. Perfect size and heavy duty. ### ⭐⭐⭐⭐⭐ A Solid Flask *by T***O on June 15, 2023* I like the quality build of this flask. The top fits well and does not leak. There are only two pieces, the flask and the cap, so nothing to fiddle with when cleaning the unit. It does a great job of maintaining the temperature of whatever I put in it. My only reservation is that the flask is a little heavy. I was accustomed to uninsulated plastic containers, with the added pack weight being primarily the fluid in the container. It didn't occur to me that an insulated metal flask might have an empty weight of 0.75 pounds empty, but it does. This may not matter for a casual trip, but for a backpacking excursion it does. I still really like the HydroFlask and plan to use it often. The product is well designed and built. ### ⭐⭐⭐⭐⭐ My Husband Stole My Son's Water Bottle *by C***C on September 11, 2024* My son absolutely loves his water bottle. So does my husband. I think I need to buy another soon. 😂 It keeps ice water cold for well over 12 hours. It's easy to clean, takes a beating, and easy to carry because of the handle. I don't think we're going to go to any other brand. We have coffee cups too. The customer service is fast and professional. ## 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.jp/products/40929274-water-bottle-insulated-stainless-steel-non-spill-leakproof-in-21](https://www.desertcart.jp/products/40929274-water-bottle-insulated-stainless-steel-non-spill-leakproof-in-21) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-13*