Not Flat, We Checked. Artist: Ray VanTilburg. Screen printed on Sport Gray 100% Cotton T-Shirt, in the USA. in the USA.BEWARE, all authentic OffWorld Designs products sold through Amazon.com are sold only by the seller OffWorld Designs or fulfilled by Amazon Prime. Products sold by other sellers are imitation products. These inauthentic products do not have the same quality, color, fabric, construction and are an inferior replication of our design. OffWorld Designs does not support the quality of these products. Please check the seller name before purchasing. OffWorld Designs takes our authenticity of our products very seriously and we will take legal action against all imitation products.