Impressive Lacoste collection ! i manage to keep the dye vibrant in my darker colored polos by using some special washing liquid they do now for dark colors. It works pretty well. But it depends a lot of the quality of the polo and the dyeing. We are a few here who noticed that for example MIChina ones usually fade much more and quicker. i wouldn't dare to remove the pocket of a Sunspel polo (if i had one) because they are pretty expensive !