--- product_id: 744523737 title: "Hydro Flask Standard Mouth Flex Straw Cap Black" brand: "hydro flask" price: "1360900₫" currency: VND in_stock: true reviews_count: 5 category: "Hydro Flask" url: https://www.desertcart.vn/products/744523737-hydro-flask-standard-mouth-flex-straw-cap-black store_origin: VN region: Vietnam --- # Fits all Standard Mouth Hydro Flask bottles Customizable straw length Leak-proof honeycomb insulated cap Hydro Flask Standard Mouth Flex Straw Cap Black **Brand:** hydro flask **Price:** 1360900₫ **Availability:** ✅ In Stock ## Summary > 🥤 Sip smart, stay cool, and never miss a beat with Hydro Flask Flex Straw Cap! ## Quick Answers - **What is this?** Hydro Flask Standard Mouth Flex Straw Cap Black by hydro flask - **How much does it cost?** 1360900₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/744523737-hydro-flask-standard-mouth-flex-straw-cap-black) ## 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 - • **Safe & Stylish:** BPA & toxin free materials ensure pure taste without compromise—carry with pride. - • **Tailored Hydration:** Easily trim the flexible straw to your perfect length—hydration, your way. - • **Effortless Clean-Up:** Removable parts and dishwasher safe design keep your sip fresh and hassle-free. - • **Leak-Proof Confidence:** Honeycomb insulated cap locks in temperature and prevents spills on the move. - • **Universal Compatibility:** Seamlessly fits all Hydro Flask standard mouth bottles for instant upgrade. ## Overview The Hydro Flask Standard Mouth Flex Straw Cap is a leak-proof, insulated replacement cap designed for all standard mouth Hydro Flask bottles. Featuring a customizable flexible straw, honeycomb insulation for temperature retention, and BPA-free materials, it offers a convenient, spill-resistant hydration solution perfect for cold beverages. Dishwasher safe and easy to clean, it’s the ultimate upgrade for on-the-go professionals who demand style and function. ## Description Stay hydrated easily with the Hydro Flask Flex Straw Cap. Designed to keep you cool and refreshed by simply flipping the cap. Whether you're heading to school, practice, the gym, or just relaxing at home, this leak proof insulated straw lid makes drinking a breeze. Drink inside out or click to close. Enjoy the leak-proof hydration of your favorite Standard Mouth Hydro Flask bottle. Flex straw caps are built for convenience. Includes 2 straws that can be trimmed to the perfect length for the bottle. Comes with a handy trim ruler for quick measurements. Once adjusted for an easy, customizable fit every sip The cap and parts separate quickly for a thorough clean up, you can toss everything in the dishwasher or hand wash Review: Does what it says (not for warm liquids though) - Works well, does not leak but DO NOT USE WITH WARM LIQUIDS, just cold drinks Review: Perfect sports top for hydroflask - Works great, fits hydroflask and is leak proof. ## Features - Straw Cap: Leak proof insulated flex straw cap makes it easy to stay hydrated on the go. In addition to your favorite Standard Mouth Hydro Flask bottle, the easy-to-use straw lid makes it easy to enjoy cold hydration anywhere. Straw caps for school, sports and home use can be easily flipped over for drinking - LEAK PROOF: The water bottle straw cap will not leak when closed. Say goodbye to leaky reusable water bottles. When you click it to close, your drink will stay securely sealed all day long so you can have peace of mind - CUT TO FIT: The Flex Straw Lid for bottles comes with 2 easy to trim straws to fit standard mouth hydro flask bottles. Comes with a trim ruler for easy measuring - DISHWASHER SAFE: Easy to clean, closable straw cap can be hand washed or put in the dishwasher. The parts of the cap can be easily separated for a thorough clean so you can flip the straw or drink at any time - COLD DRINKS: Hydro Flask Flex Straw Cap is not for carbonated or hot drinks. BPA Free - Dishwasher safe - Not for use with hot liquids ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09D8RPYKJ | | Amazon Bestseller | #910,351 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1,754 in Water Bottle Accessories | | Brand | Hydro Flask | | Brand Name | Hydro Flask | | Closure Type | Screw Top | | Color | Black | | Customer Reviews | 4.6 out of 5 stars 2,317 Your Review | | Global Trade Identification Number | 00810028842878 | | Included Components | Water Bottle Accessories | | Is the item dishwasher safe? | Yes | | Item Type Name | Water Bottle Accessories | | Item Weight | 5 g | | Manufacturer | Hydro Flask | | Manufacturer Part Number | SFS001 | | Material | Plastic | | Material Type | Plastic | | Model Number | SFS001 | | Number of Pieces | 1 | | Product Style | flex straw | | Shape | Square | | Style | flex straw | | UPC | 810028842878 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Hydro Flask - **Color:** Black - **Item Weight:** 5 g - **Material:** Plastic - **Style:** Flex Straw ## Images ![Hydro Flask Standard Mouth Flex Straw Cap Black - Image 1](https://m.media-amazon.com/images/I/51rs8Q52D8L.jpg) ![Hydro Flask Standard Mouth Flex Straw Cap Black - Image 2](https://m.media-amazon.com/images/I/51B4IRm6R0L.jpg) ![Hydro Flask Standard Mouth Flex Straw Cap Black - Image 3](https://m.media-amazon.com/images/I/61ez4KjT79L.jpg) ![Hydro Flask Standard Mouth Flex Straw Cap Black - Image 4](https://m.media-amazon.com/images/I/61AFhL7WnIL.jpg) ![Hydro Flask Standard Mouth Flex Straw Cap Black - Image 5](https://m.media-amazon.com/images/I/717rJFPcpEL.jpg) ## Questions & Answers **Q: Why so expensive? i can get it cheaper from hydro flask, rei, dick sporting goods, etc.** A: Sure you can , If dick sporting goods has the same brand and style **Q: Is this product authentic? Made by Hydroflask?** A: Hello Robert - Wendy from Tall Ridge here - This Hydro Flask Standard Mouth Insulated Sport Cap purchased from us is authentic. We are an authorized Hydro Flask dealer. Please feel free to check us out. We want you to feel comfortable with your purchase. All Hydro Flask products purchased from us are authentic Hydro Flask products. **Q: Does this work for the 64 oz growler?** A: Hello James - Wendy from Tall Ridge here - The Hydro Flask 64 ounce Growler is a Wide Mouth. The Hydro Flask Insulated Sport Cap is for the Standard Mouth bottles only. **Q: Does it fit a 21 oz?** A: If the 21 oz bottle you have has a standard opening, not a wide opening, it should fit. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Does what it says (not for warm liquids though) *by L***A on September 16, 2025* Works well, does not leak but DO NOT USE WITH WARM LIQUIDS, just cold drinks ### ⭐⭐⭐⭐⭐ Perfect sports top for hydroflask *by M***E on September 8, 2025* Works great, fits hydroflask and is leak proof. ### ⭐⭐⭐⭐⭐ excelente *by N***A on July 26, 2025* excelente ## Frequently Bought Together - Hydro Flask Standard Mouth Lids- Accessory for Standard Mouth Water Bottle - Hydro Flask Replacement Straws 3 Count (Pack of 1) - Hydro Flask Wide Mouth Lids- Accessory for Wide 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.vn/products/744523737-hydro-flask-standard-mouth-flex-straw-cap-black](https://www.desertcart.vn/products/744523737-hydro-flask-standard-mouth-flex-straw-cap-black) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-27*