Personalized Neurofibromatosis Hope Cure Ribbon Youth T-Shirt. Neurofibromatosis green ribbon Youth T-Shirt - White with hope is the first step towards a cure for neurofibromatosis. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.