I Wear Periwinkle For Pulmonary Hypertension Awareness Shirt Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester Imported Machine wash cold with like colors, dry low heat Do you or a loved one have pulmonary hypertension? Wear this shirt to show your love and support. Perfect for mom, dad, sister, brother, wife, husband, aunt, uncle, son, daughter, grandma, grandpa, friend Primary (idiopathic) and secondary pulmonary hypertension affects arteries in the lungs and the right side of the heart, tiny arteries in your lungs, called pulmonary arterioles, and capillaries become narrowed, blocked. Can cause shortness of breath, dizziness, and chest pressure. Periwinkle ribbon, hope support love treatment, fight! Lightweight, Classic fit, Double-needle sleeve and bottom hem