--- product_id: 455084558 title: "HydraPak UltraFlask Speed (500ml or 600ml) - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap" brand: "hydrapak" price: "AR$37635" currency: ARS in_stock: false reviews_count: 5 url: https://www.desertcart.com.ar/products/455084558-hydrapak-ultraflask-speed-500ml-or-600ml-collapsible-soft-flask-water store_origin: AR region: Argentina --- # SpeedFill cap for rapid refills collapsible, shrinks as you drink 500ml ultra-light capacity HydraPak UltraFlask Speed (500ml or 600ml) - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap **Brand:** hydrapak **Price:** AR$37635 **Availability:** ❌ Out of Stock ## Summary > 💦 Stay ahead of the pack with hydration that moves as fast as you do! ## Quick Answers - **What is this?** HydraPak UltraFlask Speed (500ml or 600ml) - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap by hydrapak - **How much does it cost?** AR$37635 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/455084558-hydrapak-ultraflask-speed-500ml-or-600ml-collapsible-soft-flask-water) ## Best For - hydrapak enthusiasts ## Why This Product - Trusted hydrapak brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bounce-Free Hydration:** Fits snugly in hydration vests and packs to eliminate bounce and chafing during your runs. - • **Collapsible Convenience:** Soft TPU material shrinks as you drink, reducing movement and stashing away effortlessly. - • **Customizable Versatility:** Choose between straw or bite valve with the 42mm cap to match your hydration style. - • **SpeedFill Cap Technology:** One-motion pop-open cap lets you refill quickly at aid stations without missing a beat. - • **Ultra-Lightweight Design:** Weighs just 41g, so you barely notice it while powering through your miles. ## Overview The HydraPak UltraFlask Speed is a 500ml collapsible soft flask designed for runners and athletes who demand ultra-lightweight, bounce-free hydration. Made from durable TPU and equipped with a quick-access SpeedFill cap, it fits seamlessly into hydration vests and packs. Its innovative collapsible design shrinks as you drink, minimizing movement and maximizing comfort. BPA-free and backed by a beyond lifetime warranty, it’s the ultimate hydration companion for serious endurance athletes. ## Description Part of our ultra-light series, the 500 ml is so light, you might forget you brought it. Weighing in at just over an ounce, it’s optimal hydration, no matter what kind of runner you are. Its soft material conforms to most pockets & shrinks as you drink to minimize water movement. Topped with our SpeedFill cap for quick aid station refills and is ready for use with or without the tube. Ultra lightweight, ultra useful Included in the package: UltraFlask 500ml Flask SpeedFill Cap Drink Tube Bite Valve Basic Care & Use Instructions Specifications: Capacity: 500 mL / 17 fl oz Weight: 41 g / 1.4 oz Dimensions: 186 mm x 58 mm / 7.3 in x 2.3 in Material: TPU, PP, Silicone, POM ## Features - HYDRATION VEST COMPATIBLE: Fits easily in most hydration vests, belts or pack pockets. Provides bounce-free stability and a flexible flask shoulder to prevent chafing. - COLLAPSIBLE FLASK: Soft material conforms to any pocket, and shrinks as you drink to reduce movement and pack away easily when empty. - PERFECT FOR AID STATIONS: UltraFlasks are equipped with our SpeedFill Cap designed for quick and easy refilling at aid stations. A side tab pops open the cap in one motion and snaps shut with a click. - CUSTOMIZABLE CAP: Built for versatility, the UltraFlask comes with a 42mm customizable cap. Choose between straw or bite valve. - BEYOND LIFETIME WARRANTY: If you experience any issue, we’ll repair or replace the item for free. Whatever it takes to keep your adventure going. ## Technical Specifications | Specification | Value | |---------------|-------| | Additional Features | Collapsable, Straw | | Asin | B09S8RZB94 | | Bottle Type | Collapsible Water Bottle | | Brand Name | HydraPak | | Capacity | 500 Milliliters | | Colour | Malibu Blue | | Container Type | Soft Bottle | | Customer Reviews | 4.6 4.6 out of 5 stars (347) 4.6 out of 5 stars | | Finish Types | Glossy | | Included Components | 2 Pieces Collapsible 500ml SoftFlask, Cap and Straw | | Item Dimensions W X H | 5.1W x 21.6H Centimeters | | Item Type Name | 500ml SoftFlask | | Item Weight | 84 Grams | | Manufacturer | HydraPak | | Manufacturer Part Number | 20222 | | Material Type | TPU, PP/POM, Silicone | | Material Type Free | BPA Free, BPS Free, PVC Free, BPF Free, DEHP Free | | Model Name | UltraFlask Speed 500ml | | Model Number | 20222 | | Number Of Items | 2 | | Number Of Packs | 2 | | Product Care Instructions | Hand Wash Only | | Recommended Uses For Product | Sports | | Reusability | Reusable | | Shape | Round | | Specific Uses For Product | running | | Sport Type | Running | | Style Name | 500ml - 2 Pack - With Drink Straws | | Theme | Hydration Bottle, Athletic | | Unit Count | 2.0 Count | | Upc | 834456002901 | ## Product Details - **Brand:** HydraPak - **Material:** TPU, PP/POM, Silicone - **Bottle Type:** Collapsible Water Bottle - **Colour:** Malibu Blue - **Capacity:** 500 Milliliters ## Images ![HydraPak UltraFlask Speed (500ml or 600ml) - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap - Image 1](https://m.media-amazon.com/images/I/6143Thp1XTL.jpg) ![HydraPak UltraFlask Speed (500ml or 600ml) - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap - Image 2](https://m.media-amazon.com/images/I/71M2AWJuX6L.jpg) ![HydraPak UltraFlask Speed (500ml or 600ml) - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap - Image 3](https://m.media-amazon.com/images/I/81K0u5i0OmL.jpg) ![HydraPak UltraFlask Speed (500ml or 600ml) - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap - Image 4](https://m.media-amazon.com/images/I/81iHjTiZo0L.jpg) ![HydraPak UltraFlask Speed (500ml or 600ml) - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap - Image 5](https://m.media-amazon.com/images/I/71kZ8zzQ-QL.jpg) ## Questions & Answers **Q: I have a bunch of these but they tend to get a bit slimy inside. What is the best way to clean them?** A: We suggest using Bottle Bright to help clean your soft flask. https://www.amazon.com/Bottle-Bright-Tablets-Biodegradable-Hydration/dp/B06XYCVDB9/ref=sr_1_4?hvadid=616928149387&hvdev=c&hvlocphy=9028880&hvnetw=g&hvqmt=e&hvrand=2863089430132798370&hvtargid=kwd-12313741154&hydadcr=9377_13604253&keywords=bottle+bright&qid=1693921708&sr=8-4 **Q: Will they take a Katadyn BeFree filter?** A: Haven't tried putting the filter in, but I carry the BeFree collapsable water filter and flask with me on most of my runs, hikes, and long gravel rides. It folds up easy and weighs nothing. I have been doing this for years. Very fortunate to live in Washington where there is clean, clear water on most of the trails & mountain gravel roads up here. **Q: osprey duro 15, will it fit the front pockets?** A: Hi there! Our flasks and reservoirs will fit most running vests. Please see below dimensions and compare to that of your running vest to see if they are compatible. Dimensions: 7.3 x 2.3 in ## Customer Reviews ### ⭐⭐⭐⭐⭐ Exact same as the Outdoor Vitals Skyline 30 ones *by on Reviewed in the United States 29 August 2025* It’s solid and the best ones on the market. I have zero idea how I can even complain about it but it does exactly as advertised and don’t notice anything wrong with them. Bought them for my outdoor vitals skyline 30 since I lost one due to tsa. But for what it is I love them. I don’t have any leaks, stores flawless in several running vest I own and two different backpacks, it’s easy to carry and no funky taste and they are easy to clean so I don’t mind putting in some tablets in them even if trailrunning a two day trip. Plus I love the straws so it’s right by my face so I don’t even need to reach and drink instead I just turn my head and bite the valve and drink. It’s just all around a good design ### ⭐⭐⭐⭐⭐ Exactamente o que pretendia *by on Reviewed in Spain 24 July 2024* Os flasks são de muito boa qualidade. Já os usei em treino e competição. A abertura rápida dá jeito para abastecimentos e agora uso sempre os extensores porque me dá mais jeito. ### ⭐⭐⭐⭐⭐ Good soft flasks *by on Reviewed in the United Kingdom 18 May 2025* Works well, as advertised ## Frequently Bought Together - HydraPak UltraFlask Speed (500ml or 600ml) - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap - HydraPak Velocity Hydration Reservoir (1.5L or 2L), Slim Profile Water Bladder, Self-Sealing Bite Valve, Leak Proof, Reversible, Dishwasher Safe - HydraPak Velocity IT (1.5L or 2L Hydration Reservoir) - Insulated Water Bladder/Reservoir for Hydration Pack – Self-Sealing Bite Valve, Leak Proof and Dishwasher Safe --- ## 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.com.ar/products/455084558-hydrapak-ultraflask-speed-500ml-or-600ml-collapsible-soft-flask-water](https://www.desertcart.com.ar/products/455084558-hydrapak-ultraflask-speed-500ml-or-600ml-collapsible-soft-flask-water) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-09-15*