Hurley Block Party 18'' Boardshorts. With Phantom four way stretch and an 18'' outseam for ultimate mobility, quick drying fabric, and a timeless silhouette, the Phantom Block Party Boardshorts 18'' has been a staple in lineups for years — for more than a few reasons. Stock up now. Four way stretch. DWR coating. Block Party stripes. Back pocket with Velcro and grosgrain pull. Icon patch. 18'' outseam. 6'' inseam. 86% Recycled Polyester, 14% Spandex. Machine wash. Imported.