I have a bunch of these but they tend to get a bit slimy inside. What is the best way to clean them?

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

Will they take a Katadyn BeFree filter?

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.

osprey duro 15, will it fit the front pockets?

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

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

HydraPak UltraFlask Speed (500ml or 600ml) - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap

HydraPak UltraFlask Speed (500ml or 600ml) - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap

Product ID: 455084558

Details

Brand
HydraPak
Material
TPU PP/POM
Bottle Type
Collapsible
Colour
Malibu Blue
Capacity
500

⚡SpeedFill cap for rapid refills

🌀collapsible, shrinks as you drink

💧500ml ultra-light capacity

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

NZ$280

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to New Zealand.

Secure transaction

Description

💦 Stay ahead of the pack with hydration that moves as fast as you do!

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.
SPEED FILL 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.

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.

Specifications

Brand	HydraPak
Material	TPU, PP/POM, Silicone
Bottle Type	Collapsible Water Bottle
Colour	Malibu Blue
Capacity	500 Milliliters
Special Feature	Collapsable, Straw
Product Dimensions	5.1W x 21.6H Centimeters
Product Care Instructions	Hand Wash Only
Model Name	UltraFlask Speed 500ml
Recommended Uses For Product	Sports
Number of Items	2
Theme	Hydration Bottle, Athletic
Reusability	Reusable
Shape	Round
Material Type Free	BPA Free, BPS Free, PVC Free, BPF Free, DEHP Free
Style	500ml - 2 Pack - With Drink Straws
Finish Type	Glossy
Net Quantity	2.0 Count
Package Information	Soft Bottle
Specific Uses For Product	running
Manufacturer	HydraPak
UPC	834456002901
Department	Unisex-Adult
Country of Origin	USA
Item model number	20222
ASIN	B09S8RZB94

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.