---
product_id: 429517092
title: "HydraPak 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: "€ 0.37"
currency: EUR
in_stock: false
reviews_count: 7
url: https://www.desertcart.sk/products/429517092-hydrapak-ultraflask-speed-600ml-2-pack-collapsible-soft-flask-water
store_origin: SK
region: Slovakia
---

# SpeedFill one-motion cap Vest-compatible, bounce-free fit 600ml collapsible capacity HydraPak 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:** € 0.37
**Availability:** ❌ Out of Stock

## Summary

> 💦 Stay fueled, stay fast — hydration that keeps pace with your grind!

## Quick Answers

- **What is this?** HydraPak 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?** € 0.37 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/429517092-hydrapak-ultraflask-speed-600ml-2-pack-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

- • **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: Fabulous - Excellent
Review: Works perfectly - Great for long runs. Doesn't leak and super easy to refill

## Features

- Warning:Do not use with accessories other than those supplied or recommended by the manufacturer.
- 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 |
| Age Range Description | Baby |
| Best Sellers Rank | 174,018 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 552 in Cycling Hydration Packs |
| Bottle Type | Water bottle |
| Bottle type | Water bottle |
| Brand | HydraPak |
| Capacity | 600 ml |
| Colour | Malibu Blue |
| Container Type | Soft Bottle |
| Customer Reviews | 4.4 out of 5 stars 298 Reviews |
| Finish | Glossy |
| Included Components | 2 Pieces Collapsible 600ml SoftFlask, Cap and Straw |
| Item Dimensions W x H | 8.1W x 18.5H centimetres |
| Item Type Name | 600ml SoftFlask |
| Item Weight | 92 Grams |
| Manufacturer | HydraPak |
| Material | Plastic |
| Material Type Free | Bisphenol A (BPA) Free |
| Model Name | UltraFlask Speed 600ml |
| Model Number | 834456002918 |
| Number of Items | 2 |
| Number of Packs | 2 |
| Part Number | 834456002918 |
| Product Care Instructions | Clean with mild soap and water, then let it air dry. |
| Recommended Uses For Product | running and endurance sports |
| Reusability | Reusable |
| Shape | Round |
| Special Features | Collapsable |
| Special feature | Collapsable |
| Sport Type | Running, hiking, cycling |
| Style | Sporty |
| Theme | Running & Endurance Sports |
| UPC | 834456002918 |
| Unit Count | 1 count |
| Usage | Electrolytes, Water |

## Product Details

- **Bottle type:** Water bottle
- **Brand:** HydraPak
- **Capacity:** 600 Millilitres
- **Colour:** Malibu Blue
- **Material:** Plastic

## Images

![HydraPak 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)
![HydraPak 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 2](https://m.media-amazon.com/images/I/71M2AWJuX6L.jpg)
![HydraPak 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 3](https://m.media-amazon.com/images/I/81K0u5i0OmL.jpg)
![HydraPak 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 4](https://m.media-amazon.com/images/I/81iHjTiZo0L.jpg)
![HydraPak 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 5](https://m.media-amazon.com/images/I/71J9iH+MyRL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fabulous
*by A***G on 23 May 2026*

Excellent

### ⭐⭐⭐⭐⭐ Works perfectly
*by B***G on 16 July 2025*

Great for long runs. Doesn't leak and super easy to refill

### ⭐⭐⭐⭐⭐ Buen Soft flask
*by J***O on 30 May 2023*

Muy comodos, los popotes excelentes

## 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.sk/products/429517092-hydrapak-ultraflask-speed-600ml-2-pack-collapsible-soft-flask-water](https://www.desertcart.sk/products/429517092-hydrapak-ultraflask-speed-600ml-2-pack-collapsible-soft-flask-water)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-08-13*