Personalized Arthritis Ribbon Tree Youth T-Shirt. Arthritis Ribbon Tree Youth T-Shirt - White is a lovely way to show your support and to raise awareness about arthritis. 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.