Our Pastured not Petri shirt is the perfect homage to pasture raised poultry and your support against lab grown meat, in a fun way. Solid colors are 100% Airlume combed and ring-spun cotton Ash color is 99% combed and ring-spun cotton, 1% polyester Heather colors are 52% combed and ring-spun cotton, 48% polyester Athletic and Black Heather are 90% combed and ring-spun cotton, 10% polyester Heather Prism colors are 99% combed and ring-spun cotton, 1% polyester Fabric weight: 4.2 oz./yd.² (142 g/m²) Pre-shrunk fabric Side-seamed construction Tear-away label Shoulder-to-shoulder taping Contains 0% recycled polyester Contains 0% dangerous substances