Culture T-Shirt is a 6 oz. SUPIMA® cotton t-shirts, the world's finest. Made of Extra Long Staple American Grown SUPIMA® Cotton grown in California under strict, quality-controlled guidelines, the hand and feel of this shirt are extraordinary. Additionally, no toxic dyes or formaldehyde were used in the production of this product. The smooth, soft feel is what we are famous for. These are incomparable in just about every way possible.