PL or PES - Polyester, the shortened name of a synthetic polymer used in many textile blends.
EA or EL - Elastane (also called Lycra or Spandex), made from polyether-polyurea copolymer
PA - Polyamide, a synthetic fiber made from polyamides
CoolPlus®
PBT - Polybutylene Terephthalate, texturized polyester with natural stretch
PU - Polyurethane, a waterproof fabric that is made by laminating other fibers, including polyester
CO - Cotton, a natural fiber derived from the cotton plant
PP - Polypropylene, is a thermoplastic polymer.