Heat Transfer Vinyl
Heat Transfer Vinyl (HTV) is a specialty vinyl material that is used to decorate or personalize T-shirts, garments, and other fabric items. HTV contains a heat-activated adhesive backing, which allows the vinyl to permanently transfer to your garment when heat pressed with sufficient time, temperature, and pressure.
One of the great things about heat press vinyl is that there are so many different varieties of colors and finishes. A few of the most common are pictured below.