The chain of human persons required to bring the clothing you and I wear to stores over the world, and sell it to us, is a long one indeed. So, lets start at the very beginning.
Often there is another layer of shipping at this point, as undyed fabrics get sent to other facilities where they get dyed, or printed.
Once garments are assembled they get packed again, and shipped probably overseas to a warehouse somewhere. Then they will be picked up and shipped yet again, to the warehouse for some clothing retailer. And shipped even once more till they are finally at a shop. Those clothes must be unpacked, checked for damages, and readied for the shop floor, where sales people will stand ready to help customers make their decisions.