Yellow seems to be in this year. I've been wearing these head ties in other colors (mostly white) for years. I sweat a lot, and these work better than the cotton fuzzy head bands at keeping sweat out of my eyes (and are more comfortable) .
I sweat a lot, and I like these head ties better than the cotton head bands because they work much better. However, Nike says they've discontinued them, so these are evidently some of the last ones available.