The outer shorts and tight lining materials are polyester and spandex. The spandex content of the lining is higher, so the elasticity is better. Elastic waistband with drawstring for adjustable fit; wide range of applications: staying at home, enjoying beach hangouts, ball sports, swimming, or going to the gym. With a customized logo, it is an ideal choice for summer parties. Orders of 500 pieces or greater are eligible for sea shipping. 100% guarantee for quality.