It's a uniform. The sheriff's dept makes Those decisions. Arguing with a paramilitary organization is like teaching pigs to sing...

Cotton is inappropriate for backpacking. Our shirts stay soaked for hours and hours, and Most hypothermia cases happen in summer because people think it won't happen above freezing. And yet it does... Being wet accelerates it, and cotton stays wet.
"In the beginner's mind there are many possibilities. In the expert's mind there are few." Shunryu Suzuki