Tenax Tenflow tri-axial geocomposite has at least 2-3 times the transmissivity of conventional bi-axial geocomposites for both fluid or gas transmission. This high performance geocomposite allows for wide levels of gas venting to occur preventing gas pressure build-up under the liner. Tenflow also allows for greater variances in cover soil permeability, and a longer slope length while still preventing induced slope failure.