I angeschaftt me the part for fast running workouts at high temperatures. I have been functional shirts from about 10 different manufacturers, both based on polyester, and polypropylene. Today almost nothing is processed polypropylene-based, no wonder: my pretty scratch. But having the lowest water absorption and. The best transport. The Under Armour is unfortunately my shirt with the worst wicking. This part takes on so much water that I can wring it after a run so that really comes out a lot of water. Is actually do not.The material is very finely woven, which is unfavorable for the more function anyway. I habs still keep because I was too lazy for the rescission and the fit is ok. It is also rather thin, which is also a small advantage.