100% Cotton Original Guy Harvey artwork on the back Breathable Fabric Tagless for extra comfort Machine Washable Widely recognized today as the world's finest marine artist, Guy Harvey creates marine art with unmatched authenticity. You can see this on the back of this long sleeve t-shirt in his stunning portrayal of a few of his favorite species. Machine washable. Help Save our Oceans! Your purchase supports the health of our oceans and marine life. A portion of the proceeds from the sale of all official Guy Harvey merchandise benefits the Guy Harvey Foundation, which conducts scientific research and hosts educational programs to help save our seas.