Personalized Cystic Fibrosis Purple Awareness Ribbon Youth T-Shirt. Cystic Fibrosis purple awareness ribbon Youth T-Shirt - Kelly Green for your next support walk event. 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.