--- product_id: 429517092 title: "UltraFlask Speed 600ml 2-Pack - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap (600 ml/20 oz), Malibu Blue" brand: "hydrapak" price: "€ 100.69" currency: EUR in_stock: true reviews_count: 6 category: "Hydra Pak" url: https://www.desertcart.hr/products/429517092-ultraflask-speed-600ml-2-pack-collapsible-soft-flask-water-bottle store_origin: HR region: Croatia --- # SpeedFill one-motion cap Vest-compatible, bounce-free fit 600ml collapsible capacity UltraFlask Speed 600ml 2-Pack - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap (600 ml/20 oz), Malibu Blue **Brand:** hydrapak **Price:** € 100.69 **Availability:** ✅ In Stock ## Summary > 💦 Stay fueled, stay fast — hydration that keeps pace with your grind! ## Quick Answers - **What is this?** UltraFlask Speed 600ml 2-Pack - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap (600 ml/20 oz), Malibu Blue by hydrapak - **How much does it cost?** € 100.69 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/429517092-ultraflask-speed-600ml-2-pack-collapsible-soft-flask-water-bottle) ## 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 - • **Tailor Your Sip:** Customizable 42mm cap lets you choose between straw or bite valve for hydration your way. - • **Refill in a Flash:** SpeedFill cap pops open with one hand and snaps shut securely—perfect for quick aid station stops. - • **Lightweight & Packable:** Ultra-light 46g design fits snugly in most hydration vests and running packs without adding bulk. - • **Adventure-Ready Guarantee:** Backed by a beyond lifetime warranty—repair or replace free to keep you moving forward. - • **Hydrate Without the Bounce:** Soft, collapsible flask shrinks as you drink for zero sloshing and ultimate comfort during long runs. ## Overview The HydraPak UltraFlask Speed 600ml 2-Pack offers a collapsible, ultra-lightweight hydration solution designed for endurance athletes. Featuring a bounce-free, vest-compatible design and a quick one-motion SpeedFill cap, it enables fast refills and customizable drinking options. Made from durable, BPA-free materials and backed by a beyond lifetime warranty, it’s engineered to keep you hydrated and comfortable on every long-distance run or ride. ## Description Go big. The largest of our ultra-light series, the UltraFlask 600 ml holds more so you can go the distance. Its soft material allows it to fit snugly in most vest pockets and it 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. Included in the package: UltraFlask 600ml Flask SpeedFill Cap Drink Tube Bite Valve Basic Care & Use Instructions Specifications: Capacity: 600 mL / 20 fl oz Weight: 46 g / 1.6 oz Dimensions: 186 mm x 81 mm / 7.3 in x 3.2 in Material: TPU, PP, Silicone, POM Review: Works perfectly - Great for long runs. Doesn't leak and super easy to refill Review: Tolles praktisches Produkt. Riecht nicht, ist kompakt, gut zu reinigen, schnelle Lieferung. Perfekt Vielen Dank ## 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 | |---------------|-------| | ASIN | B09S8SMLRY | | Batteries required | No | | Best Sellers Rank | 82,519 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 267 in Cycling Hydration Packs | | Care instructions | Clean with mild soap and water, then let it air dry. | | Customer Reviews | 4.4 4.4 out of 5 stars (254) | | Date First Available | 19 Feb. 2022 | | Finish types | Glossy | | Import designation | Imported | | Included components | 2 Pieces Collapsible 600ml SoftFlask, Cap and Straw | | Is mould resistant | Bisphenol A (BPA) Free | | Item model number | 834456002918 | | Item weight | 84 Grams | | Product Dimensions | 8.13 x 8.13 x 18.54 cm; 84 g | | Specific uses | Long Distance Events | ## Product Details - **Bottle type:** Water bottle - **Brand:** HydraPak - **Capacity:** 600 Millilitres - **Colour:** Malibu Blue - **Material:** Plastic ## Images ![UltraFlask Speed 600ml 2-Pack - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap (600 ml/20 oz), Malibu Blue - Image 1](https://m.media-amazon.com/images/I/61xgCTHYMoL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works perfectly *by B***G on 16 July 2025* Great for long runs. Doesn't leak and super easy to refill ### ⭐⭐⭐⭐⭐ Review *by N***I on 27 September 2024* Tolles praktisches Produkt. Riecht nicht, ist kompakt, gut zu reinigen, schnelle Lieferung. Perfekt Vielen Dank ### ⭐⭐⭐⭐⭐ Review *by H***E on 30 October 2025* facilité de remplissage. ma meilleure gourde jusqu'à present ## 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.hr/products/429517092-ultraflask-speed-600ml-2-pack-collapsible-soft-flask-water-bottle](https://www.desertcart.hr/products/429517092-ultraflask-speed-600ml-2-pack-collapsible-soft-flask-water-bottle) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-18*