Performance Testing: This is a very important aspect of the product development process.  All products developed must pass performance testing requirements.  It is the suppliers responsibility to ensure that all products produced meet or exceed the buyers performance standards.  Before entering into an agreement to manufacturer apparel, be certain to fully understand the quality standard requirements requested by your buyers.  It is normal practice to have both fabric and garments tested before product is delivered.  Typically, the testing is done at a third party testing facility such as CTL, MTL, etc.  Often times the buyer is the one to assign the testing lab.  Some times the retailer (buyer) will submit the garments for testing.  However, often the buyer will require that the supplier submits the fabric and garments directly to the testing laboratory and then provide them with copies of the test results.  Testing will be done prior to production and after final production is complete.  Many retailers will also do surprise testing on garments after they arrive into the stores.  This technique is used to discourage suppliers from submitting garments for testing that are not actually the same quality as final production.