Poltrona Frau expands the Martha range and lets the designer Roberto Lazzeroni play with his creature - that Martha armchair with rounded shapes and a leather shell - adding a tilting base. The project was born from the meeting of the two main elements of the body, both in rigid polyurethane obtained from the mold. Seat and armrests are part of a single sinuous line with the two ends extended outwards. The curved and slightly padded back, which seems to float in the air, is fixed to the shell with a retractable system. A triangular section solid wood easel supports the whole. The curved solid ash base is available in Wengé and Moka finishes. The exterior of the shell is covered with a rich Saddle Extra leather shell, while the interior can be upholstered in Pelle Frau leather or in fabric. The whole is completed by a soft seat cushion with removable cover, available in the same upholstery as the internal shell. Like the fixed version, this rocking version is FSC® 100 certified, guaranteeing a product made with raw materials deriving from correctly managed forests and respectful of environmental sustainability.