Formulated for exceptional stretch, Speedball Flex Fabric Screen Printing Inks remain soft to the touch—never stiff—and resist cracking, fading, and peeling even with repeated wear and movement. Designed for screen printing on cotton, polyester, rayon, and other synthetic fibers, these breakthrough inks deliver rich, opaque color that stands out beautifully on both light and dark garments. Colors can also be intermixed to create custom palettes, and once properly heat set, prints become permanent, retaining their vibrant finish for the life of the garment.