A synthetic material (22), a sensor comprising the synthetic material (22) and a method for making the synthetic material (22) and the sensor, respectively, as well as the use of this synthetic material (22) as a construction material and/or a high performing material, especially in the areas of aeronautics, aerospace, automotive, wind turbines and sporting goods. The synthetic material (22) comprising at least two phases (2, 9) and an optical detectable component (26, 16), wherein at least one of said phases is a solid phase building a matrix (20) of the synthetic material (22), and wherein the optical detectable component (26, 16) changes its optical properties (symbol 5, 7) when its intact structure is perturbed (8/26′), said optical detectable component (26, 16) is bond to both phases (2, 9) of the synthetic material (22).