--- product_id: 429281532 title: "Hydro Flask Accessory Standard Mouth Flex Straw Cap Black - for Standard Mouth Bottles - Insulated, Dishwasher Safe, BPA-Free, Non-Toxic" brand: "hydro flask" price: "€ 51.75" currency: EUR in_stock: true reviews_count: 5 category: "Hydro Flask" url: https://www.desertcart.es/products/429281532-hydro-flask-accessory-standard-mouth-flex-straw-cap-black-standard store_origin: ES region: Spain --- # Dishwasher safe for effortless cleaning BPA-free, non-toxic plastic TempShield™ double-wall vacuum insulation Hydro Flask Accessory Standard Mouth Flex Straw Cap Black - for Standard Mouth Bottles - Insulated, Dishwasher Safe, BPA-Free, Non-Toxic **Brand:** hydro flask **Price:** € 51.75 **Availability:** ✅ In Stock ## Summary > 🥤 Elevate your hydration game with the ultimate flex straw cap! ## Quick Answers - **What is this?** Hydro Flask Accessory Standard Mouth Flex Straw Cap Black - for Standard Mouth Bottles - Insulated, Dishwasher Safe, BPA-Free, Non-Toxic by hydro flask - **How much does it cost?** € 51.75 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/429281532-hydro-flask-accessory-standard-mouth-flex-straw-cap-black-standard) ## 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 - • **Universal Fit Flex:** Designed to snap onto standard mouth bottles for seamless hydration - • **Effortless Clean-Up:** Dishwasher safe design means no extra hassle after your adventure - • **Lightweight & Durable:** Weighs just 5g but built tough for your daily grind - • **Stay Chill or Sip Warm:** TempShield™ insulation locks in your drink’s perfect temp all day long - • **Safe Sipping Guaranteed:** Crafted from BPA-free, non-toxic materials for peace of mind ## Overview The Hydro Flask Accessory Standard Mouth Flex Straw Cap in sleek black features TempShield™ double-wall vacuum insulation to maintain your beverage temperature. Lightweight at 5g and made from BPA-free, non-toxic plastic, it fits standard mouth bottles perfectly. Dishwasher safe for easy cleaning, this cap is designed for professionals who demand convenience and style in their hydration gear. ## Description Stay hydrated the easy way with the Hydro Flask Flex Straw Cap, designed for cold refreshment with the flip of a cap. Whether you’re heading to school, practice, the gym or just relaxing at home, this leakproof, insulated straw lid makes sipping simple. Flip it open to drink, click it shut when you’re done, and enjoy leakproof hydration from your favorite Standard Mouth Hydro Flask bottle. The Flex Straw Cap is built for convenience. It comes with two straws that can be trimmed to the perfect length for your bottle, with a handy trim ruler included for quick measuring. Once adjusted, you’ll have a customized fit that makes every sip effortless. The cap and components separate quickly for thorough washing, and you can toss everything right into the dishwasher or wash by hand. 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: Hydration on the go just got easier with the leakproof, insulated Flex Straw Cap. Add it to your favorite Standard Mouth Hydro Flask bottle to easily enjoy cold hydration anywhere with an easy-to-use straw lid. The straw cap for school, sports and home is easy to flip and sip. - LEAKPROOF: The water bottle straw cap is leakproof when closed. Say goodbye to leaky reusable water bottles. Click it shut, and rest easy knowing your drink stays securely sealed all day. - CUT TO FIT: The Flex Straw lid for bottles includes two straws that are easy to trim to fit your Standard Mouth Hydro Flask bottle. A trim ruler is included for easy measuring. - DISHWASHER SAFE: Easy to clean, the closeable straw cap can be hand washed or tossed in the dishwasher. Cap components easily separate for thorough cleaning, so your straw is ready to flip, sip and go whenever you are. - COLD SIPS: The Hydro Flask Flex Straw Cap is not intended for use with carbonated or hot drinks. BPA-Free - Dishwasher safe - Not intended for use with hot liquids ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09D8RPYKJ | | Best Sellers Rank | #163,490 in Sports, Fitness & Outdoors ( See Top 100 in Sports, Fitness & Outdoors ) #147 in Camping & Hiking Canteens & Water Bottles (Sports, Fitness & Outdoors) | | Brand | Hydro Flask | | Brand Name | Hydro Flask | | Closure Type | Screw Top | | Colour | Black | | Country of Publication | USA | | Customer Reviews | 4.6 out of 5 stars 2,326 Reviews | | Global Trade Identification Number | 00810028842878 | | Is the item dishwasher safe? | Yes | | Item Weight | 5 g | | Manufacturer | Hydro Flask | | Manufacturer Part Number | SFS001 | | Material | Plastic | | Material Type | Plastic | | Model Number | SFS001 | | Number of Pieces | 1 | | Shape | Square | | UPC | 810028842878 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Hydro Flask - **Colour:** Black - **Item Weight:** 0.01 Pounds - **Material:** Plastic - **Shape:** Round ## Images ![Hydro Flask Accessory Standard Mouth Flex Straw Cap Black - for Standard Mouth Bottles - Insulated, Dishwasher Safe, BPA-Free, Non-Toxic - Image 1](https://m.media-amazon.com/images/I/51rs8Q52D8L.jpg) ![Hydro Flask Accessory Standard Mouth Flex Straw Cap Black - for Standard Mouth Bottles - Insulated, Dishwasher Safe, BPA-Free, Non-Toxic - Image 2](https://m.media-amazon.com/images/I/51B4IRm6R0L.jpg) ![Hydro Flask Accessory Standard Mouth Flex Straw Cap Black - for Standard Mouth Bottles - Insulated, Dishwasher Safe, BPA-Free, Non-Toxic - Image 3](https://m.media-amazon.com/images/I/61ez4KjT79L.jpg) ![Hydro Flask Accessory Standard Mouth Flex Straw Cap Black - for Standard Mouth Bottles - Insulated, Dishwasher Safe, BPA-Free, Non-Toxic - Image 4](https://m.media-amazon.com/images/I/61AFhL7WnIL.jpg) ![Hydro Flask Accessory Standard Mouth Flex Straw Cap Black - for Standard Mouth Bottles - Insulated, Dishwasher Safe, BPA-Free, Non-Toxic - 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 16 September 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 8 September 2025* Works great, fits hydroflask and is leak proof. ### ⭐⭐⭐⭐⭐ excelente *by N***A on 26 July 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.es/products/429281532-hydro-flask-accessory-standard-mouth-flex-straw-cap-black-standard](https://www.desertcart.es/products/429281532-hydro-flask-accessory-standard-mouth-flex-straw-cap-black-standard) --- *Product available on Desertcart Spain* *Store origin: ES* *Last updated: 2026-05-31*