The floor material is a polyvinyl (PVC) and it is amazing. It has a texture so you can get a grip on the floor with your shoes or feet and it also does not make hardly a sound when you walk on it like the old tarp-like crunchy nylon floors everyone is used. In other words, if it is the middle of the night and you need to go do your business you might get away with it if you can keep the tent zippers quiet-the floor won't make a sound.