Cellular Confinement Systems (CCS), commonly referred to as geocells, were developed by Presto Geosystems in the late 1970’s. The CCS’s 3-dimensional geocellular honeycomb structure confines and stabilizes cohesionless soils, delivering strength and higher performance to soils than when unconfined. The CCS technology is based on the interaction between hoop stresses in the geocell cell walls and passive earth resistance of single or multi-layered geocell systems. Presto and their partners continue to lead research and development to advance cellular confinement technology for soil stability challenges in a wide range of site applications and markets.