Marine Layer Tropical/Hawaiian Drawstring Swim Shorts/Trunks. Made of a lightweight blended fabric that is water-repellent and quick-drying, these trunks feature a comfortable elastic waist with a drawstring for a customizable fit. The front is lined with mesh for added support and breathability. Perfect for recreational activities such as surfing and lifeguarding, these trunks are machine washable and easy to care for.