---
product_id: 457241264
title: "HydraPak UltraFlask Speed Collapsible Soft Flask (600ml, Old Malibu)"
brand: "hydrapak"
price: "1625CFA"
currency: XOF
in_stock: false
reviews_count: 13
url: https://www.desertcart.sn/products/457241264-hydrapak-ultraflask-speed-collapsible-soft-flask-600ml-old-malibu
store_origin: SN
region: Senegal
---

# Collapsible design Customizable cap Hydration vest compatible HydraPak UltraFlask Speed Collapsible Soft Flask (600ml, Old Malibu)

**Brand:** hydrapak
**Price:** 1625CFA
**Availability:** ❌ Out of Stock

## Summary

> 💦 Stay Hydrated, Stay Ahead!

## Quick Answers

- **What is this?** HydraPak UltraFlask Speed Collapsible Soft Flask (600ml, Old Malibu) by hydrapak
- **How much does it cost?** 1625CFA with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/457241264-hydrapak-ultraflask-speed-collapsible-soft-flask-600ml-old-malibu)

## 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

- • **Quick Refills:** Equipped with a SpeedFill Cap for effortless refilling at aid stations.
- • **Lifetime Assurance:** Backed by a beyond lifetime warranty for worry-free adventures.
- • **Space-Saving Design:** Collapsible material shrinks as you drink, making it easy to pack away when empty.
- • **Bounce-Free Stability:** Designed to fit seamlessly in hydration vests, ensuring a smooth run without chafing.
- • **Versatile Cap Options:** Choose between a straw or bite valve for your hydration preference.

## Overview

The HydraPak UltraFlask Speed is a 600ml collapsible soft flask designed for hydration vests and running packs. It features a flexible design for bounce-free stability, a SpeedFill Cap for quick refills, and a customizable cap for your preferred drinking style. With a beyond lifetime warranty, this flask is built for the adventurous spirit.

## Description

The HydraPak UltraFlask™ Speed is built light, flexible, and made to move. Designed for both trail and road runners, each flask has a sleek profile and a durable 3D-welded bottom that fits securely in most hydration packs and larger vest pockets. The soft, pliable body conforms to your setup and shrinks as you drink, minimizing water movement and packing down easily when empty. Topped with our SpeedFill™ Cap, the UltraFlask Speed flips open for quick refills and snaps closed for leakproof transport. The 42mm opening makes it easy to fill with water, ice, electrolytes, or drink mixes, while the high-flow, self-sealing bite valve delivers sips without annoying drips. Reusable, collapsible, and race-day ready, this soft flask is ideal for training runs, long trail days, racing and any setup that needs fast, stable hydration on the move. Made with TPU, PP, silicone, POM, and 304SS materials. The UltraFlask Speed is the ideal universal replacement flask for your favorite running vests and packs, offering universal compatibility and a secure fit across most major hydration brands.

Review: Hydrate is the key ! - These are a life saver while out hiking. The pack light when not in use and also do a good job of keeping your drinks a little cooler than some other products I've used in the past. Quality made and very durable, no leaks at all after months of use.
Review: To the review that said it wasn't collapsable. - I read a review that said it wasn't as collapsible as it could be. I disagree. I'll let the images speak for itself. Now to the product. Water bottle is fantastic and as advertised. Refer to the photos where I use my hand as a size guide. In comparison I would say it's about the size of a crystal ice bottle drink but a little shorter (I got the 600ml) Very lightweight and great for concerts, backpacking, camping, hiking, running or other outdoor adventures. I kinda wish I got two . Only con I see, which is personal preference, is that the spout you drink from, has to be bitten, to drink. You cant really drink it from a squeeze in the air like a gatoraid commercial lol but doesn't bother me.

## 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 | B09NF5B3TB |
| Additional Features | 3D welded bottom, Collapsable, Compatible with select 42mm threaded filters, Dishwasher safe, Lightweight 500ml capacity, Self-sealing bite valve, SpeedFill Cap, Universal soft flask replacement, Wide opening for fast refills, Wider vest-compatible shape |
| Age Range Description | Any Age Group |
| Best Sellers Rank | #309,954 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #771 in Hydration Packs #4,805 in Water Bottles |
| Bottle Type | Collapsible Water Bottle |
| Brand | HydraPak |
| Brand Name | HydraPak |
| Capacity | 600 ml |
| Color | Malibu Blue |
| Container Type | bottle |
| Customer Reviews | 4.4 out of 5 stars 123 Reviews |
| Finish Types | Matt |
| Global Trade Identification Number | 00834456002628 |
| Included Components | Collapsible 600ml SoftFlask, Cap and Straw |
| Item Dimensions W x H | 3.2"W x 7.3"H |
| Item Type Name | 600ml SoftFlask |
| Item Weight | 46 g |
| Manufacturer | HydraPak |
| Manufacturer Part Number | 834456002628 |
| Manufacturer Warranty Description | Lifetime |
| Material | TPU , PP/POM, Silicone |
| Material Type | TPU, PP/POM, Silicone |
| Material Type Free | Bisphenol A (BPA) Free |
| Model Name | UltraFlask Speed 600ml |
| Model Number | 834456002628 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Aid-station refills, Backpacking, Fastpacking, Hiking, Hydration vest carry, Marathon training, Running, Running pack hydration, Trail Running, Travel, Ultramarathon racing |
| Reusability | Reusable |
| Shape | Round |
| Special Feature | 3D welded bottom, Collapsable, Compatible with select 42mm threaded filters, Dishwasher safe, Lightweight 500ml capacity, Self-sealing bite valve, SpeedFill Cap, Universal soft flask replacement, Wide opening for fast refills, Wider vest-compatible shape Special Feature 3D welded bottom, Collapsable, Compatible with select 42mm threaded filters, Dishwasher safe, Lightweight 500ml capacity, Self-sealing bite valve, SpeedFill Cap, Universal soft flask replacement, Wide opening for fast refills, Wider vest-compatible shape See more |
| Specific Uses For Product | Electrolytes, Water |
| Sport Type | Climbing, Exercise & Fitness, Running, Track & Field, Walking |
| Style Name | 600ml - With Drink Straw |
| Theme | Outdoor Activities |
| UPC | 834456002628 |
| Unit Count | 1 Count |

## Images

![HydraPak UltraFlask Speed Collapsible Soft Flask (600ml, Old Malibu) - Image 1](https://m.media-amazon.com/images/I/61FGWl3OqIL.jpg)
![HydraPak UltraFlask Speed Collapsible Soft Flask (600ml, Old Malibu) - Image 2](https://m.media-amazon.com/images/I/8137zk6LRmL.jpg)
![HydraPak UltraFlask Speed Collapsible Soft Flask (600ml, Old Malibu) - Image 3](https://m.media-amazon.com/images/I/91tla-NHKYL.jpg)
![HydraPak UltraFlask Speed Collapsible Soft Flask (600ml, Old Malibu) - Image 4](https://m.media-amazon.com/images/I/81I6SKGpxTL.jpg)
![HydraPak UltraFlask Speed Collapsible Soft Flask (600ml, Old Malibu) - Image 5](https://m.media-amazon.com/images/I/712+RJOR2eL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Hydrate is the key !
*by B***R on July 1, 2025*

These are a life saver while out hiking. The pack light when not in use and also do a good job of keeping your drinks a little cooler than some other products I've used in the past. Quality made and very durable, no leaks at all after months of use.

### ⭐⭐⭐⭐⭐ To the review that said it wasn't collapsable.
*by B***N on May 1, 2024*

I read a review that said it wasn't as collapsible as it could be. I disagree. I'll let the images speak for itself. Now to the product. Water bottle is fantastic and as advertised. Refer to the photos where I use my hand as a size guide. In comparison I would say it's about the size of a crystal ice bottle drink but a little shorter (I got the 600ml) Very lightweight and great for concerts, backpacking, camping, hiking, running or other outdoor adventures. I kinda wish I got two . Only con I see, which is personal preference, is that the spout you drink from, has to be bitten, to drink. You cant really drink it from a squeeze in the air like a gatoraid commercial lol but doesn't bother me.

### ⭐⭐⭐⭐⭐ I like it
*by M***T on March 15, 2025*

I love this flasks its perfect. It is a little difficult to close, so make sure you push it really hard until it clicks. I havent had any trouble with it though, once clicked.

## Frequently Bought Together

- Hydrapak UltraFlask Speed 600ml - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap (600 ml/20 oz), Malibu Blue
- HydraPak 42mm Filter Cap - Water Filtration Accessory - Fast Flow - Perfect for Hiking, Endurance Sports, Camping, Travel, and Emergency Preparedness

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**Shop now:** [https://www.desertcart.sn/products/457241264-hydrapak-ultraflask-speed-collapsible-soft-flask-600ml-old-malibu](https://www.desertcart.sn/products/457241264-hydrapak-ultraflask-speed-collapsible-soft-flask-600ml-old-malibu)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-09-02*