---
product_id: 424549287
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: "$2.43"
currency: USD
in_stock: false
reviews_count: 8
url: https://www.desertcart.ec/products/424549287-hydrapak-ultraflask-speed-500ml-or-600ml-collapsible-soft-flask-water
store_origin: EC
region: Ecuador
---

# SpeedFill one-motion cap 500ml/600ml collapsible capacity Bounce-free, vest-compatible fit HydraPak UltraFlask Speed (500ml or 600ml) - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap

**Brand:** hydrapak
**Price:** $2.43
**Availability:** ❌ Out of Stock

## Summary

> 💦 Stay fast, stay flexible, stay fueled.

## 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?** $2.43 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/424549287-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

- • **Shrink & Stow:** Collapsible soft flask shrinks as you drink, saving space and weight for your next adventure.
- • **Tailor Your Sip:** Customizable 42mm cap lets you choose between a straw or bite valve for hydration your way.
- • **Refill in a Flash:** SpeedFill cap with one-motion pop-open tab lets you top up quickly at aid stations—no fumbling, no spills.
- • **Adventure-Proof Guarantee:** Backed by a beyond lifetime warranty—repair or replace free to keep you moving forward.
- • **Hydrate Without the Bounce:** Designed to fit snugly in hydration vests and packs, eliminating annoying movement and chafing during your runs or hikes.

## Overview

The HydraPak UltraFlask Speed is a lightweight, collapsible 500ml or 600ml soft flask designed for runners and outdoor enthusiasts. Its bounce-free fit integrates seamlessly with hydration vests and packs, while the innovative SpeedFill cap enables quick refills. Made from BPA-free materials and backed by a lifetime warranty, it offers customizable hydration options with a straw or bite valve, making it the ultimate companion for high-performance hydration on the go.

## Description



## 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 |
|---------------|-------|
| Brand | HydraPak |
| Material | TPU, PP/POM, Silicone |
| Bottle Type | Collapsible Water Bottle |
| Color | Malibu Blue |
| Capacity | 500 Milliliters |
| Special Feature | Collapsable, Straw |
| Product Dimensions | 2.3"W x 7.3"H |
| Product Care Instructions | Hand Wash Only |
| Model Name | UltraFlask Speed 500ml |
| Recommended Uses For Product | Running |
| Number of Items | 1 |
| Theme | Modern |
| Reusability | Reusable |
| Shape | Round |
| Material Type Free | Bisphenol A (BPA) Free, Bisphenol S (BPS) Free, Polyvinyl Chloride (PVC) Free, Bisphenol F (BPF) Free, Di(2-ethylhexyl)phthalate (DEHP) Free |
| Style | 500ml - With Drink Straw |
| Finish Type | Matte |
| Unit Count | 1.0 Count |
| Package Information | Soft Flask Bottle |
| Specific Uses For Product | Outdoor activities, sports, running, hiking |
| Item Weight | 41 Grams |
| Manufacturer | HydraPak |
| UPC | 834456002635 |
| Global Trade Identification Number | 00834456002635 |
| Item Package Dimensions L x W x H | 9.57 x 6.42 x 3.7 inches |
| Package Weight | 0.1 Kilograms |
| Item Dimensions  LxWxH | 2.3 x 2.3 x 7.3 inches |
| Brand Name | HydraPak |
| Warranty Description | Lifetime |
| Suggested Users | Unisex-Adult |
| Part Number | 834456002635 |
| Model Year | 2022 |
| Included Components | Collapsible 500ml SoftFlask, Cap and Straw |
| Size | 16.9 Ounces |
| Sport Type | Climbing, Exercise & Fitness, Running, Track & Field, Walking |

## Product Details

- **Brand:** HydraPak
- **Material:** TPU, PP/POM, Silicone
- **Bottle Type:** Collapsible Water Bottle
- **Color:** 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/611rKy8AUQL.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)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazing for trail race
*by J***Y on June 17, 2025*

One race in, and I'm in love. I have that common salomon vest, and had to replace the hydrapaks. These are bigger than what I had but still fit. Running with the straws was a mixed bag - I'm still working on the best way to keep them from bouncing around while also not being pressured to my neck. The access for a quick drinky drink was amazing. These also feel thicker than the Salomon version that came with my vest. These are worth the upgrade - though, I haven't tried other brands for a true comparison.

### ⭐⭐⭐⭐⭐ Great for running
*by C***E on May 12, 2025*

Love this! I use this in my running vest and it works really well. Doesn’t leak and is easy to clean. The straw was too long for where I like to wear it high up on my vest but I was easily able to cut it to the perfect length for me and fit the piece back on with no issues.

### ⭐⭐⭐⭐⭐ 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.

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-03-10*