Shirts are made using the Gildan G640 Ladies Softstyle Shirt. Each shirt features double-needle stitching throughout, ensuring that it can withstand the wear and tear of everyday use. The shirt is also preshrunk, so you don't have to worry about it shrinking in the wash. ​Designs are created with a high quality, durable, thin vinyl. Your shirts won't feel like the design is going to come off while you're out and about. We've been using this vinyl for over a year now and can personally say that washing them multiple times, even over a year, has not destroyed or dulled the vinyl at all.