Every sheet of Coredinations Cardstock is acid and lignin-free and of 80 lb weight. This Cardstocks has a core color which "core'dinates" with the surface color. You can choose to keep the core color hidden or add your own creative touch by sanding, tearing, antiquing, or embossing by revealing the colored core. Core Essentials Hermit is a Black cardstock with a brown core which makes it a good pick for those masculine pages, cards or 3D paper crafts. The front side of the paper has a canvas texture while the reverse side is smooth.