Nylon/Spandex or Poly/spandex stretch fabric, swim trunk or triangle swim brief with rubber print or mesh prit , Fabric: high quality nylon ... is always a problem in swimwear industrial , after we investigation , men's swim trunk is not common and unchangeable , it also need to ... and influnce. we can do paper pattern according to customer's designing sewing spec, or even do OEM Or DEM, men's swim trunk