What I mean by that is what type of material do you like in your jacket. Examples are Primaloft, Goose Down, fleece or wool. Since Fall and winter are coming Jackets are going to be in use again, I myself like polartec fleece because we tend to have milder winters here and layering a couple of pieces of fleece work and if it gets any colder then either my hard shell of down vest. Also what are your favorite pieces and brands for insulation. My favorite pieces are the First Ascent Cloud Layer 1/4 zip and Point Success jacket, 100 weight and 200 weight fleece respectively.