Women's Brain Yin-Yang T-ShirtMaterial: 4. 2 oz., 32 singles 52% Airlume combed and ringspun cotton, 48% polyester Athletic Heather, Black Heather: 90% airlume combed ringspun cotton, 10% polyester Pre shrunk Feature: Relaxed fit Side seamed Tear away label Sustainably produced WRAP certified and FLA participating company Bella+Canvas uses sustainable manufacturing processes with blue sign certified dyes, efficient dye houses that adhere to the state of Californias EPA regulations