FlexMac is a multicellular Galmac-coated, corrosion-resistant gabion structure with reinforced steel bar integrated into the mesh. Each cell is internally lined with geotextile to contain the fill. The unit can be pinned through a spiral connecting interlock.

FlexMac can be lined up, backfilled, and stacked for emergency flood control, coastal protection, bank restoration, or water diversion, for both temporary and permanent applications.