HydraPak UltraFlask+ 500ml: Soft Flask Water Bottle with Built-in Filter


✅ Editor’s Pick


🛒 Available on Amazon


💰 Value-Focused

📸 Product Images

HydraPak UltraFlask+ 500ml: Soft Flask Water Bottle with Built-in Filter

Current Amazon Price
EUR43.96 - EUR40.44
(as of Jan 25, 2026 05:46:07 UTC)
Prices and availability can change. Amazon’s price at checkout applies.

🧭 How This Product Was Evaluated

  • 👣 Comfort and usability for typical hikes
  • 🧱 Materials and build quality for repeated outdoor use
  • ⚖️ Value compared with similar products in the same category
  • 🎒 Fit for beginner and casual hikers

🎯 Who This Is Best For

  • 🧑‍🦯 Beginner hikers and casual outdoor users
  • 🌲 Day hikes, light trails, and weekend trips
  • 💵 Buyers prioritizing practical value
  • 🗺️ General use in parks, trails, and travel hikes

⚙️ Product Overview

✅ Best For Beginner hikers, day hikes, casual outdoor use
👟 Comfort Built for extended walking and trail use
🛡️ Durability Suitable for common hiking environments
💵 Value Competitive for its feature set

See reviews + more photos on Amazon


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🌟 Pros & Cons

✅ Pros

  • 🙂 Comfortable for most beginner hiking needs
  • ⚖️ Balanced feature-to-price ratio
  • 🧩 Easy to use with minimal setup
  • 🧭 Versatile for different trail conditions
⚠️ Cons

  • 🏔️ Advanced users may want higher-end features
  • 📏 Performance depends on correct size/fit


📝 Product Details

Lighten your load and drink right from the source. We took our go-to flask and added filtration to create a system that delivers hydration without contamination. The filter — light and compact — screws on top so you can drink right from the flask. Or — if you’re carrying more water — use the system to fill a bottle or reservoir. Care: Avoid freezing filter. Freezing may ruin the hollow fiber membrane. If in freezing conditions we recommend you keep the filter in your pocket or near your body to prevent freezing. *Effectively removes common waterborne bacteria, such as E.coli (99.999%) and parasitic cysts (99.9999%) per HSF 42. Included in the package: – UltraFlask+ 500ml Flask – 42MM Filter Flask Cap – Bite Valve – BackFlush Adapter – Filter Manual – Basic Care & Use Instructions Specifications: – Capacity: 500 mL / 17 fl oz – Weight: 65 g / 2.3 oz – Dimensions: 240 mm x 70 mm / 9.4 in x 2.8 in – Material:TPU, Silicone POM, Hollow Fiber, ABS
FAST & SAFE FILTRATION: Included 42MM Filter Flask Cap removes 99.99% of E Coli & Parasitic cysts. Filters approximately 1,500 liters of fresh water at a rate of >1 L per minute.*
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 pockets, and shrinks as you drink to reduce movement and pack away easily when empty.
INCLUDED BACKFLUSH ADAPTER: Plugs into filter valve and threads onto a HydraPak Stow or bottle of clean water for backflushing the filter to restore its flow rate.
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.

🏁 Final Assessment

If the size and materials match what you need, check today’s price and the latest reviews before you decide.


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❓ Frequently Asked Questions

Is this suitable for beginners?

Yes. It’s designed to be easy to use and practical for people new to hiking.

What type of hiking is it best for?

Day hikes, light trails, and casual outdoor activities.

Is this good value for money?

It offers a balanced mix of features and price compared with similar products.



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Prices and availability are subject to change.

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