Nylon Metal swim trunks. The trilobal structure of the nylon yarns and the gray dyeing in the white weft, which undergoes a special warp dyeing process, create the iridescent metallic look of Nylon Metal, one of the most versatile fabrics from STONE ISLAND textile research. Garment dyeing with an elaborate double dyeing process. Slanted pockets. Back pocket with concealed zipper. Logo patch with Stone Island wind rose at left leg. Mesh fabric at interior. Elastic waistband with interior drawcord.