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Fuse | Hydration

Lightweight hydration backpack for any outdoor activity


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Just what you need for fun days in nature

When you are riding your bike on the trail, you need a backpack with a hydration system and space to carry your essentials.

Source’s Fuse is designed for biking or hiking. The Fuse is a lightweight, mid-volume pack that keeps you light on the trail while fulfilling your needs- pack and organizes gear plus drink fluids with ease.

Used globally by cyclists and outdoors adventurists who carry gear and hydration, each Source MTB Pack contains a Widepac hydration system with a co-extruded tube and Helix valve.

Ideal for walking, hiking, biking, or when outdoors, the Fuse will become your grab-and-go backpack with hydration for a short ride or hike.


  • Made of durable water-resistant 210 Denier nylon
  • Padded stabilizing lightweight winged hip belt and an engineered back structure with maximum back ventilation
  • Three separate compartments

The included Widepac Hydration System features all Source hydration advantages: The patented Wideslide™ wide opening makes filling, cleaning, and draining the bladder easier than ever – and it’s 100% leakproof. All Source Hydration Systems are low maintenance & easy-care thanks to our unique GlassLike™ and GrungeGuard™ technology. Water stored in a Source Widepac tastes like water and stays fresh for days and even weeks – with no plastic taste thanks to our TasteFree™ Technology!


The Fuse comes in a smaller 8L version (with 2L Hydration Bladder) or in a more spacious edition with 12L of total cargo space, including the 3L Widepac Hydration Bladder.

  • SKUfuse
  • Manufacturer Source
  • Made in israelYes
  • Weight8 Liter: 500 g | 12 Liter: 800 g
  • Length8 Liter: 22 cm | 12 Liter: 24 cm
  • Width8 Liter: 11 cm | 12 Liter: 15 cm
  • Height42 cm
  • Water volumeversion 8 Liter includes: 2 Liter water bladder | version 12 Liter includes: 3 Liter water bladder.
  • Storage capacityversion 8 Liter includes: 6 Liter cargo | version 12 Liter includes: 9 Liter cargo.

Technology Features and Specs

The wide and unique opening provides convenience for filling and drying the bag while withstanding high pressures.
Exclusive Widepac sheet technology provides a smooth surface glass-like and makes it difficult for bacteria to get caught
Drink water without aftertaste: a three-layer polyethylene sheet that maintains the taste of the water without side aftertaste
An antibacterial supplement that integrated into the sheets, reducing the development of bacteria, for the entire Widepac lifecycle
Glass-Like and Grunge-Guard technology is the new generation of hydration bladder technology. No need to clean the bladder again, just refill and drink again and again. The water will keep fresh for days and even weeks

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Customer Reviews
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Filter Reviews:
Marina M.

Fuse 12L pack (3L hydration compatible) - a great pack for a short person!

I received my black 12L Fuse pack today, and I am very impressed. I have been a fan of Source hydration bladders for a long time (have been using green military-style ones), and decided to try a Source pack for day hiking, I was looking to replace my old worn-out hiking pack… I really like the design, all the thoughtfully placed pockets, and how strap ends roll up and get secured with elastic, and how you can secure the end of the water tube to the strap. The pack fits my 5’3” 105lbs frame very comfortably. The pack is solidly made and feels like a high quality item. Thank you so much for making such a good looking and comfortable pack!!!

Jared B.

Loads of storage. Structurally sound and very well built. A little too pricy but well worth it!

Works well, no issues

Jason S.

Not arrive yet

Sorry, did not receive yet. Nor receive it in time for our travel to Europe. So have not had time to see, touch or use it. This review will have to wait until another trip.

David B.

3l backpack.

Works extremely well. Keeps water cool.

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