ACT Zero 50+15 Backpack

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The ACT ZERO series was built with lighter, faster trips and thru-hikers in mind! These packs allow the experienced backpacker or mountaineer to carry necessities without added pack weight.

Product Details


  • Removable lid 15L - converts to summit pack
  • Aircontact back system
  • Vari-Quick back length adjustment with bilaminate foam construction and optimized shape
  • Anatomically shaped shoulder straps with soft edges
  • Lightweight multi-chamber aluminimum X-frame with 1/2in stays
  • Resupply extension collar with optional roll top closure
  • Large stretch front pocket
  • Lid pocket
  • Internal valuables pocket
  • Zipped pocket on hip belt for valuables
  • Gear attachment loops on lid
  • Ice Axe and hiking pole loops - also used for foldable poles
  • Mesh side pockets
  • Compression and load adjustment straps
  • Double-layered base
  • SOS label Hydration system compatible
  • Removable sleeping pad straps

Deuter Aircontact System

1. Stabilizer straps allow optimal positioning of the backpack. These are easily repositioned on the shoulder straps using a Triglide buckle. Aircontact models above 50 + 10 SL sizes also have two different fixing points, depending on the back length setting, in order to optimize the load adjustor strap angle.

2. Breathable padding with special ventilating hollow chamber foam; With every movement, a pump effect circulates air through the breathable Aircontact cushions of this direct body contact system. Extra air channel ventilation between the back cushions is bery effective.

3. The anatomically shaped hip fins are made from mulitple layers. The inner side has a layer of soft foam with 3D AirMesh lining for heightened comfort. The firm foam on the outside is modelled to the anatomic shape and transfers the load to the hips. Side compression straps on the fins regulate the load and increase stability. On the compact ACT Lite fins this bilaminate construction is perfectly balanced between weight reduction and loads, maximize stability and load transfer ratio. Aircontact models designed to carry heavier loads, maximize stability and load transfer thanks to the additional synthetic reinforcement in between foam layers.

4. Head molding provides freedom of head movement. Effective on models Aircontact 50 + 10 SL and up.

5. Contoured shoulder straps with 3D Airmesh linng.

6. Vari-Quick system for easy adjustment to any back length.

7. The anatomic profiled X-Frame offers a balance of torsional rigidity and flexibilty to follow your body movements, and transfers weight through it's perfect back fit.

8. All Aircontact models are fitted with Deuter's Vari Flex System, leaving the generous hip fins fully mobile. The Vari Flex hip fins follow even the most complex movements allowing tricky sections to be negotiated without losing your balance- especially important when carrying a hefty load.