Both are great. And they both have stuff that work perfectly well for sitting in stands whitetail hunting. I've used Kuiu attach pants and Sitka pullovers sitting in Alabama tree stands and Stika Incinerator bibs with Kuiu jackets and shells for Nebraska late season archery. Both are lighter than almost anything else out there, last a long time, are well constructed, and layer fine.

Obviously for spot and stalk mountain hunting, I haven't found anythign better.