I swapped my Solitude for this kit. Love FL, but didn’t like the Sanctuary at all for bow hunting and the Solitude just didn’t cut it on truly cold, and especially windy days. I am really liking this kit, the wind protection alone is a revelation. Jacket packs into my daypack, and it’s impressively warm. I stopped by Scheels to put hands on the Core and I still wouldn’t change. There is a temp range between my catalyst kit and this that I haven’t hit the sweet spot in, but this kit is what I needed for bow hunting MN & WI into December