The Source Hydration Pack Durapack Pro 3 liter-grey-black-Fiesta is a hydration pack that has removable straps. This allows you to slide it into your backpack or fasten it on the outside, but you can also use it as a loose pack. Very versatile system and immediately ready for any adventure! The small pocket on the outside keeps money, snacks and essentials on hand for when you need something. 

The bag comes with a woven covered tube and the special Helix ™ Bite Valve. Filling is very easy through the large filler cap on the outside of the pack.

Below are some more features of the Durapack:

• Padded shoulder straps with adjustable Sternum Strap for extra stability
• Extra compartment for essentials
• Carrying handle
• Reflective parts for extra visibility in the dark
• Isolated hydration compartment with SOURCE Taste free ™ Hydration System
• Valve Docking Station with Dirt Shield ™ valve protection
• Drinking tube with UV protective cover
• 3-layer membrane TasteFree ™ hydration reservoir
• Source Helix ™ Bite Valve-comfortable valve with safety switching mode

Below is the explanation for removing the hydration system:

1. Open the filler cap and unscrew the tightening ring.
2. Remove the reservoir from the bag by pushing in.
3. At the back, Open the zipper and pull out the reservoir, accompanying the drinking tube.