--- product_id: 401196158 title: "Hydro Flask Straw Cap for Standard Mouth Bottles, Leakproof Straw Lid" brand: "hydro flask" price: "S$30" currency: SGD in_stock: true reviews_count: 13 category: "Hydro Flask" url: https://www.desertcart.sg/products/401196158-hydro-flask-straw-cap-for-standard-mouth-bottles-leakproof-straw store_origin: SG region: Singapore --- # Leakproof seal Dishwasher safe Customizable straw length Hydro Flask Straw Cap for Standard Mouth Bottles, Leakproof Straw Lid **Brand:** hydro flask **Price:** S$30 **Availability:** ✅ In Stock ## Summary > 💦 Flip, Sip, Seal — Hydration That Keeps Up With You ## Quick Answers - **What is this?** Hydro Flask Straw Cap for Standard Mouth Bottles, Leakproof Straw Lid by hydro flask - **How much does it cost?** S$30 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/401196158-hydro-flask-straw-cap-for-standard-mouth-bottles-leakproof-straw) ## 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 - • **Hygiene Made Simple:** Cap and straw components separate easily for thorough cleaning—dishwasher safe for ultimate convenience. - • **Zero-Leak Confidence:** Secure click-shut lid ensures no spills, so your bag and gear stay dry all day. - • **Cold-Only Refreshment:** Optimized for cold drinks with BPA-free materials, keeping your hydration pure and fresh. - • **Tailored Fit Every Time:** Includes two straws with a trim ruler for perfect length customization to your Standard Mouth Hydro Flask. - • **Sip Seamlessly On-the-Go:** Flip-open straw cap designed for effortless hydration during workouts, commutes, or desk sessions. ## Overview The Hydro Flask Straw Cap transforms your Standard Mouth bottle into a leakproof, easy-sip hydration companion. Featuring a customizable straw length, dishwasher-safe parts, and a secure flip-top lid, it’s engineered for cold beverages and active lifestyles. Perfect for professionals and fitness enthusiasts who demand convenience without compromise. ## 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: No leak, works well! - Wish there was an option for this to come with metal straws but love having this instead of standard cap now Review: Adapts hydro flask for one hand use at gym - I bought a 24 ounce Hydro Flask for the gym that contained a regular top. I bought this so that I could use it during spin or rowing workouts. It fits perfectly and seals tightly (you have to twist the top until the orange gasket is no longer visible). It’s easy to access the spout with one hand and doesn’t spill. It comes with an extra straw. ## 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 | #4,442 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #111 in Water Bottle Accessories | | Brand | Hydro Flask | | Brand Name | Hydro Flask | | Color | BLACK | | Customer Reviews | 4.6 out of 5 stars 2,448 Reviews | | Global Trade Identification Number | 00810028842878 | | Included Components | Water Bottle Accessory | | Item Type Name | Water Bottle Accessory | | Item Weight | 4.54 g | | Manufacturer | Hydro Flask | | Manufacturer Part Number | SFS001 | | Manufacturer Warranty Description | Lifetime | | 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 Count | ## Product Details - **Brand:** Hydro Flask - **Color:** BLACK - **Item Weight:** 4.54 g - **Material:** Plastic - **Style:** Flex Straw ## Images ![Hydro Flask Straw Cap for Standard Mouth Bottles, Leakproof Straw Lid - Image 1](https://m.media-amazon.com/images/I/61mgpC0PUAL.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 ### ⭐⭐⭐⭐⭐ No leak, works well! *by K***E on August 25, 2026* Wish there was an option for this to come with metal straws but love having this instead of standard cap now ### ⭐⭐⭐⭐⭐ Adapts hydro flask for one hand use at gym *by P***C on June 25, 2026* I bought a 24 ounce Hydro Flask for the gym that contained a regular top. I bought this so that I could use it during spin or rowing workouts. It fits perfectly and seals tightly (you have to twist the top until the orange gasket is no longer visible). It’s easy to access the spout with one hand and doesn’t spill. It comes with an extra straw. ### ⭐⭐⭐⭐⭐ Very good upgrade for an old Hydro Flask bottle *by G***N on July 27, 2026* Fit my old hydro flask bottle perfectly and works great. So far, so good. ## 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.sg/products/401196158-hydro-flask-straw-cap-for-standard-mouth-bottles-leakproof-straw](https://www.desertcart.sg/products/401196158-hydro-flask-straw-cap-for-standard-mouth-bottles-leakproof-straw) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-09-13*