How Do You Stretch A Polyester And Spandex Shirt?
Polyester and spandex shirts are stretchy and flexible by nature, but they can lose their shape over time. To stretch a polyester and spandex shirt, start by filling a sink or basin with lukewarm water and add a small amount of fabric softener. Gently swirl the shirt in the water to fully saturate it and let it sit for about 30 minutes. Once the shirt has soaked, remove it from the water and gently wring out the excess water. Lay the shirt out on a flat surface and carefully stretch it to the desired size. Let the shirt air dry to retain its shape.