Personalized Down Syndrome Awareness Niece Support Youth T-Shirt. Down Syndrome I Love my Niece Youth T-Shirt - Vintage Royal Blue has blue and yellow awareness heart for an Aunt to support their niece. 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.