This works well with mild to moderate wrinkles, especially in softer material. Using either the low or high heat setting, keep the blow dryer an inch or two away from the fabric and wave it back and forth while keeping the fabric taut. I do this by pulling down on the shirt. Obviously try to keep the blow dryer off the fabric so you don’t risk damaging it. Your shirt should be wrinkle-free or much better in a couple minutes!