In traditional screen printing the shirt is printed with inks that are placed on top of a hoodie. There are two problems that my occur. First the ink is subject to cracking (spidering) since the ink is thick and quite hard and coated many times, there are only a limited number of washing before deterioration begins.
To guarantee a softer touch the actual fiber should be dyed (printed). The result is that the entire hoodie tends to breath. This water based, environmentally friendly system is what is used by Graphic Impact.