Specialty Materials White Thermoflex is a type of heat tranfer vinyl that can be used to create custom designs on clothing and other fabrics. It is available in a roll measuring 12 inches wide and 15 feet long. It can be cut with a vinyl cutter and applied to a fabric surface using heat press or iron. The vinyl is durable and strethable, making it suitable for use on a variety of fabric types. It can be washed and dried without affecting the quality of the design. White Thermoflex HTV is a great choice for creating custom apparel and acessories.