Practical iron-on film for sportswear. Run, swing, kick, dance, do that cobra pose and more: this flexible, stretchy iron-on material adapts to the body and keeps uniforms and team equipment light. Customize team jerseys or embellish uniforms, caps, yoga tops, leggings and more. SportFlex Iron-On is highly recommended for technical fabrics like polyester and nylon. Use with all Cricut cutters.