In its original state, polyester doesn’t breathe terribly well, which could be an issue given 99 percent of polos worn on the PGA Tour and sold in golf shops are made from some type of polyester fiber. With breathability being a key component of sweat wicking, however, companies have developed all sorts of workarounds. Adidas, for instance, has started knitting mesh panels into their polos. DJ wore one at Doral and looked pretty cool to me.
Adidas