Personalized Gray Ribbon Penguin Youth T-Shirt. This little penguin wears a gray ribbon of awareness on its front. Perfect for showing support for diabetes, hyperglycemia, brain cancer, asthma and allergies. Get this gray ribbon Youth T-Shirt - White personalized when you use the handy designer tool before you order. 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.