Made the traditional way, on a cylinder mold, this paper has a harmonious natural grain. The fibers are evenly distributed making the paper more stable, with very limited deformation. Made of 100% cotton fibers, ARCHES Watercolor paper can absorb a lot of water without warping or cause the colors to bleed. Exclusive to ARCHES; it is sized to the core with natural gelatin, which means it can be scratched without tearing or linting. It also preserves the luster and transparency of the colors while preventing paints penetrating into the thickness of the paper. Sold by the sheet.