These are the best running tops I have ever found. The quality, fit, and look are superb. The collar is freaking awesome because its the perfect size under running jackets. I wear these under sweaters and shirts too and it looks sporty and soft at the same time. Been looking for a PERFECT collar like this forever and I cannot find it anywhere else. Doesnt pill, makeup washes right off, doesnt chafe or bind and DOESNT look sloppy!  shirts breathe and wick so well its unreal. Its literally like the perfect shirt or undershirt. I tried other brands over the years and always come back. Nothing else compares.