Cellular Confinement Systems (CCS) , are 3D honeycomb-like geosynthetic structures, typically made from High-Density Polyethylene (HDPE). When expanded and filled with soil, gravel, or concrete, they form a stiff, stable mattress. Their primary function is soil stabilization and erosion control on slopes, channels, and soft subgrades. They confine the infill material, preventing lateral movement, increasing the load bearing capacity for heavy traffic applications like roads and railways, and enhancing the stability of retaining walls.