The Reno mattress is a structure made of hexagonal double twisted wire mesh, with mechanical characteristics higher than the ones suggested from EN 10223-3(European Norms). Reno mattresses are filled with stones at the project site to form flexible and permeable, monolithic structures such as river bank protection and channel linings for erosion control. The steel wire used to manufacture the mattress is heavily zinc-coated (or Galmac and PVC coated) soft temper steel. In order to reinforce the structure, all mesh panel edges are selvedged with a wire having a greater diameter. Reno mattresses are divided into uniformly partitioned cells by internal diaphragms.