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 Roast is a dark brown cardstock with a brown core which makes it pefect for those camping paper projects you have in mind. The front side of the paper has a canvas texture while the reverse side is smooth.