When chasing mountain lion it can be one of the easiest hunts or most challenging you will ever go on, it's a trip of highs and lows. So light weight, breathable and warm gear are a must.
Depending on the temperature forecasted these are my go to's, I layer up because most times on the chase you're on the move and not much sitting.
I usually throw my Coldfront jacket in my pack, just in case I'm sitting.