Depends on the weather, but wind-proof waterfowl sweaters, fleece, or micro fleece. I’ve dumped a lot of my Drake stuff in the EQ-wader style, for being leaky, clammy, loud, etc. Their new Guardian stuff is supposed to be better. I like Sitka stuff, but I’ve got a Banded fleece pullover that’s highly wind resistant, and it gets worn a lot on cooler days, while lighter micro fleece shirts get worn on warmer days……then again, I don’t hunt in the bitter cold nearly as much these days. I just layer under my delta shell, for the temp…..I’m more often too warm than not warm enough.