Our sharks tshirt is printed on a Poly-Cotton (50% Polyester / 50% Combed-Cotton) T-shirt. Unlike other Poly-Cotton T-shirts, our shirts are made with combed cotton, giving it a soft, worn in feel, superior drape and excellent colour fastness. Our T-shirt has a tailored regular fit. If you prefer to wear a more relaxed fit, we suggest to order one size up. Sizing Guide : Sharks tshirt : Help save our seas There are more than 460 known species of sharks living in our oceans today. Sharks are an apex predator at or near the top of their marine food chains, and they regulate the populations of species below them. Unfortunately, almost 100 million sharks are killed each years for their fins and a lot of research has shown that massive depletion of sharks has cascading effects throughout the ocean’s ecosystems. To show our support, 15% of every purchase are donated to Ocean and marine life cause to help protect these apex-predators and other threatened species.