Neurofibromatosis (NF) is a genetic disease that causes tumors to grow on the nerves anywhere in or on the body at any time. This debilitating disorder affects more people than muscular dystrophy and cystic fibrosis combined -- and yet no one's heard of it. By purchasing this t-shirt, you're helping to spread the word about NF and also funding research to help find a cure. Ten percent of your purchase price goes towards NF Inc. Northeast, a charity that gives grants to organizations that work towards a cure for NF. For more information, please visit www.nfincne.org