Oftentimes clothes become kind of hardened, or the fibers take on a stiffness that makes them not nearly as comfortable to wear as they were when they were first purchased. This is often caused by a build up of minerals that are found in hard water. Although, it can also possibly be caused because we are using cheap detergents, fabric softeners, or even crappy dryer sheets. Or, maybe we have an inefficient washing machine (that doesn't rinse everything out) or just keep forgetting about the wash and went a little crazy with the drying time (accidentally crispy/baked clothes need re-softened too).