Stone Island Mens Swim. Fashion category: Shorts. SKU: 8015B0643-V0065/CHARCOAL. Color: Black. Stone Island Compass Logo Patch Nylon Swim Trunks. These swim trunks are crafted from Stone Island's signature Nylon Metal fabric, featuring Velcro pockets, an inner mesh lining, and a garment-dye process using a double-dye technique. 100% Polyamide.