Air Fuse 12L

  • All SOURCE Hydration Systems are BPA and EA Free

The Air Fuse takes our popular lightweight Fuse 12L Pack with its 3L Widepac Hydration System, and adds a hip belt and a ultralight metal frame for stability and maximum back ventilation. For 2020 we updated all our popular Fuse hydration packs with super-durable 210D Nylon fabric - and they are Bluesign certified for sustainability. 

  • Raincover for this pack included
  • 3L SOURCE Hydration System included
Air Fuse 12L 2020

Air Fuse Hydration Pack designed for biking

Includes 3L / 100oz Widepac Hydration System - 12L Cargo

 The Air Fuse gives you a mix of light-weight simplicity with added comfort. Perfect for MTB rides - and any outdoor activity.

For this bike pack we took our popular Fuse 12L and added extra comfort for your back and shoulders. An ultralight metal frame, combined with a mesh back, provides optimal ventilation of the back - an additional advantage in hot environments. A light padded mesh hip belt stabilizes the pack during bumpy rides. 

Make sure to take a look also at our 8L or 12L Fuse and pick your favorite according to the amount of gear you're hauling on the trail!

Good to know: all our sports packs carry the official bluesign label for sustainability, certifying our efforts to protect the environment and optimize the manufacturing process for all workers involved in the manufacturing of our products.

Air Fuse Features

  • Maximum back ventilation thanks to engineered back structure with ultralight metal frame and mesh fabrics providing airflow
  • Padded stabilizing lightweight hip-belt
  • Lightweight Fabrics 
  • Padded shoulder straps
  • Adjustable sternum belt with integrated whistle
  • Lightweight buckles
  • Essentials compartment with internal Storeganizer, key holder, pen pockets
  • Velcro sealed phone pouch
  • Insulated hydration compartment
  • Raincover included
  • Carrying handle

SOURCE Hydration Features

  • Widepac™ hydration system
  • Helix™ bite valve - Comfortable valve with safety shut-off mode
  • Co-Ex tube
  • Triple layer taste and odor free film
  • Glass Like™ Film Technology
  • Grunge-Guard™ Technology
  • Taste Free™ System
  • Easy Care & Low Maintenance

SOURCE Hydration Technology

Widepac Closure (U.S Patent No. 7,648,276,B2) - The original user-friendly Widepac™ Slide Closure opens wide, allows easy filling, cleaning, draining, and ice insertion. Airtight seal. Most SOURCE Hydration Systems and Hydration Packs feature reservoirs with our signature Widepac Closure.

Taste-Free™ System - Our co-extruded PE film retains the pure taste with absolutely no plastic flavor, also over time. (BPA and Phthalate free.)

GrungeGuard™ Technology - Our GrungeGuard™-Technology inhibits bacteria growth on the reservoir and drinking tube for the life of the system. Technology utilizes FDA-approved and EPA-registered anti-microbial agent. 

Glass-Like™ Technology - SOURCE's Glass-Like™ Film is 2000% smoother than standard TPU films, with virtually no difference from glass itself. This multi-layer Polyethylene film, manufactured in accordance with SOURCE's Glass-Like™ technology, prevents bio-film build up, making the system virtually self-cleaning.

Easy Care & Low Maintenance - Glass-Like™ technology combined with Grunge-Guard™ technology represents a new generation in hydration systems, in which cleaning is no longer an issue! Simply refill with water and drink again and again without special care. Water will remain fresh for days and even weeks. 


  • Cargo Volume: 12L
  • Hydration Volume: 3L Widepac (shipped with pack)
  • Weight (without Widepac hydration system): 0.8 kg / 1.76 lb

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Air Fuse 12L

Air Fuse 12L

The Air Fuse takes our popular lightweight Fuse 12L Pack with its 3L Widepac Hydration System, and adds a hip belt and a ultralight metal frame for...

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  • Black
  • Atlantic Deep Blue
Design Innovation Award

" Bluesign certified maximum sustainability performance. "


" Our tester left water in the Widepac for eight weeks without cleaning and reported no stinky taste or smell."
" More to love: The top opens wide like a paper bag for rapid filling. "

SOURCE Ultimate Review
Source Ultimate Review

" Forget about the plastic taste of your standard hydration system. The Widepac gives you full original taste of your drink from the first sip."

Vital MTB
star star star star star
Source Widepac Hydration System

" Filling up Source bladders is easy thanks to the wide opening."
" The Helix is drip-free, and very easy to drink from. "
" It is one of the easiest to use thanks to its nearly self-maintaining properties, and it is completely taste-free."