Men’s bikini underwear Men’s sheer underwear made from polyester / spandex Machine wash Imported GBGB underwear style CHRISTOF Strip down to the bare essentials in these sexy sheer men's underwear from GBGB. Made with tantalizing, see-through mesh, the GBGB Christof Net men's bikini underwear doesn't leave much to the imagination. Plus, the GBGB bikini combines contour seaming with a shapely pouch that lifts and enhances what nature gave you.