Specialty Materials - Puff Vinyl FashionFlex. It adds a wonderful 3D appearance to any design! There are 20 colors in the FashionFlex product line - the most in the industry! You simply need to click the button once to obtain this effect. A pressure-sensitive carrier enables for easy repositioning and easy weeding. This is super easy to use as you only need to press once to get that puff effect. It’s easy to weed and its pressure-sensitive carrier allows for easy repositioning.