Men’s boardshorts Men's bathing suit made from polyester Machine wash Imported Astronomy style 33187 An interesting geometric pattern in dark red, tan and black gives these Astronomy men's boardshorts their bold, eye-catching style. The Astronomy Decca boardshorts are a traditional length men's bathing suit that hits just beneath the knees. Perfect for the resort season, these Astronomy boardshorts feature a snap and velcro closure and a back pocket on the right. 10 1/2" inseam.