How do you make spandex tighter?

To make spandex tighter, you can select a smaller size when purchasing garments, as spandex is designed to stretch and conform to the body. Alternatively, you can use heat to help the fabric shrink slightly; washing it in hot water and then drying it on high heat may tighten its fit. Additionally, consider using a sewing technique to alter the garment, such as taking in seams or adding elastic to areas for a snugger fit.