Perspiration
Use a prewash stain remover such as Sard Wonder Stick, Soap or Spray, following pack instructions. If colour of fabric has changed, apply ammonia to fresh perspiration stains or white vinegar to old stains. Rinse.
Use Dynamo and wash as the care label recommends. For stubborn stains, soak in Sard Wonder Stain Remover overnight as per label instructions.