Fine Art Paper: Our prints are created on premium, acid-free, archival fine art paper with a matte finish. Textured: The textured fine art paper is an archival, Ph-neutral, OBA-free (manufactured without the use of Optical Brightening Agents (OBAs), which are chemicals that enhance the perceived whiteness by absorbing UV light and re-emitting it as blue light), thick and gorgeous 400 gsm medium, made by Strathmore. The special top coating of this paper gives it unique precision, contrast and color saturation for a matte medium. It is also much more resistant to water spills than most fine art paper. Smooth: Our smooth fine art paper is a bright white, 100% cotton, 230gsm, Ph-neutral, archival medium made by Canon. It is the ideal paper when you need a discreet medium that won't interfere with the image. Please Note: Colors may vary slightly due to differences in monitor settings.