Arches Watercolor Paper is made the traditional way, on a cylinder mold, in France. The 100% cotton fibers are evenly distributed, making for a more stable paper that can withstand more water without warping or bleeding. Arches paper is sized with natural gelatin that prevents tearing or linting. It also preserves the luster and transparency of colors while preventing paints from penetrating. Acid-free, buffered and contain an anti-microbial agent to help resist mildew. Available in various weights, cold press, hot press and rough, with four deckled edges and a watermark.