A vehicle includes a frame, multiple tractive assemblies engaging the frame, a cabin coupled to the frame, and a blast mat. The cabin includes a seat configured to support an occupant and multiple walls at least partially defining a footwell configured to receive the feet of the occupant when the occupant is seated in the seat. The blast mat is positioned within the footwell and configured to absorb energy from an explosion, thereby reducing energy transferred into the feet of the occupant due to the explosion. The blast mat has a top surface and a bottom surface. At least a portion of the bottom surface of the blast mat engages at least one of the walls. A thickness of the blast mat is defined between the top surface and the portion of the bottom surface engaging at least one of the walls. The thickness varies throughout the blast mat.