Moleskine creates and sells FSC®-certified products and our paper is acid-free (no chlorine) for environmental reasons. Moleskine paper comes in different weights and is suited to a variety of uses and professional applications. Most Moleskine Notebooks and Planners feature 70 g/m² paper. The paper in our Art Collection (for professional use and fine arts) features paper that ranges from 70 g/m² to 200 g/m². To learn what type of paper is in your notebook, please consult the paperband or our website.