With a mould-made alpha cellulose base featuring an advanced smooth matte finish, this 25-pack of 13 x 19" GALERIE Prestige Fine Art Smooth Paper from Ilford offers users a high quality warmtone surface similar to cotton with a wide color gamut and excellent sharpness. The 220 gsm double-sided paper has an opacity of 99% and thickness of 13 mil for use in albums and portfolios. Additionally, it is a bright white paper with high contrast that is acid-free and light-resistant for longevity.