So good I bought 2!
I have the older Throttle but I compared specs and this new Trigger seems the same.
This is an AMAZING 3 season against skin or mid layer or stand-alone. It is quite often listed by retailers as underwear but it looks 100% like outerwear. Start the cold morning with hood and thumbholes, finish the afternoon with the sleeves pushed-up, it has a remarkable temperature range yet is light, allows all movement and packs super small. I got my first one really cheap (at S&C) but I loved it so much I found another and bought it at twice that price. The hood is like a balaclava and works great under-helmet or over baseball hat. The only tiny issue is a little pilling after several washes even though I didn't use fabric softener or dryer.