The Hydro-3 includes a 3 litre military grade Hydrapak reservoir and comes with the Kriega 10 year guarantee 


Hydro 3 has been designed specifically as an active riding pack with our unique Quadloc harness system. Providing a level of fit and comfort unequalled by any other hydration system. With a fully adjustable back-length and unrestricted arm movement. Once set, the pack is exceptionally convenient to use, with none of the harness strap re-adjustment necessary on conventional harness systems. The adjustable back also allows the pack position to be moved up to allow large waistpacks to be also worn. Hydro 3 can be worn with or without a waiststrap - we recommend to use a waiststrap for maximum stability, when carrying the full 3 litre water capacity.  The Hydro 3 includes a 3 litre reservoir with insulated drink hose, bite valve and full top opening for easy cleaning.
Updated for 2017 with larger front pocket capacity plus improved hook-loops for attaching additional US-5 or US-10 Drypacks.

Pack Layout

3-litre reservoir.
1-litre side access zip pocket
Removable waist strap.


The pack is supplied pre-set to level 2. For XL fit move to level 3 and level 1 for XS fit.
Step 1: Firstly, push the harness strap back into the pack, to release the harness-web tension.
Step 2: Shorten or lengthen harness by moving slider on web (equal both sides).
Step 3: Pull harness strap back out of pack, to tension harness web.
Step 4: Put on pack and adjust fit as on a conventional harness. Do not over tighten - tidy loose ends - ends under elastic loops. Once set, the harness do not need to be re-adjusted each time as the pack ergonomics allow the harness to open wide for arm access.

Hydro 3 from Kriega on Vimeo.

Tech Specs

400(H) x 170(W) x 70mm(D) SUPERSPACE: 5mm airspace back.
3-litre reservoir capacity. YKK water-resistant zips.
Unique QUADLOC harness: adjustable back length with total arm freedom. HYPALON: abrasion resistant re-enforcement.
Side access pocket Schoeller DYNATECH with intergrated 3M Scotchlite.
Optional add-on 5 or 10 litre drypack storage 420D nylon ripstop: lightweight yet extremely strong.
Optional harness pocket 3M Scotchlite: reflective logo
Removable waist strap LED rear light mounting loop
10 year guarantee

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