A: Our Heat Transfer Vinyl (HTV) is called Sports Film, and it has been our #1 seller since it was introduced nearly 40 years ago. It is a tried-and-true solution for athletic jerseys and sports apparel that stretches a minimal amount. It can be layered and textured. It is extremely easy to weed and adheres to most fabrics except for nylon and leather. Recommended for use with the following fabrics: Acrylics, 100% Cotton, Polyester Knits, Polyester Mesh, 100% Polyester, Poly-Cotton Blends, Poly Form and Cotton Caps.