Hows the breathability on the showers pass elite 2.0?

also, I found Showers Pass Softshell Trainer - http://www.showerspass.com/products....tshell+Trainer does anyone have any insight into how this one is? warmth? doesn't seem to have much option in terms of layering, but since itll mostly be for 40s or low 50s, I'm not sure how much I'd need anyway