Nylon Metal swim trunks. The trilobal structure of the nylon yarns and the grey 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. Piece dyeing with an elaborate double dyeing process. Slanted pockets. Back pocket with concealed zip. Logo patch with Stone Island wind rose on left leg. Mesh fabric on the inside. Elastic waistband with internal drawstring.