A heavy-duty back mount BC with BioFlex air cell for extreme usage.
Reinforced shoulders and a heavy-duty lumbar pad comfortably distribute the additional weight of doubles or redundant air supplies.
Other features include:Patented BioFlex rear inflation bladder provides maximum lift and minimum drag when deflated.
Reinforced shoulders, padded back pack with lumbar support and a sternum strap ensure comfort and stability when carrying
QLR Integrated Weight System