Fabric is 52% Airlume combed and ring-spun cotton, 48% polyester fleece. Mens Sizing. Women, size down 1-2 sizes depending on your preferred fit. Model is wearing size M. Care: Machine wash warm, inside out, with like colors. Only non-chlorine bleach. Tumble dry low. Medium iron, except decorative print. Do not dry clean. Your TOMS purchase helps support children's education, health and well-being, giving kids everywhere the gift of better tomorrows.