Shear bands formation in different disordered solids are well-captured by our mesoscopic StEP model. From left to right: simulated atomic glasses (left), experimental granular packing (middle), and a simulated polymer glass (right). The particles are colored according to their local strain with darker red indicating higher strain, and the applied strain localizes in all three cases. The bottom row has the stress/strain response of the three systems measured in simulations or experiments compared to the StEP model for the same three systems, showing very good agreement.