All Arches paper is acid-free and made from 100% cotton, ensuring it valiantly stands the test of time and allows you to make the most out of every sheet. An additional protective black cover sheet provides extra protection from light and elements, meaning this paper is made to last for years to come. Arches watercolour paper is available in several formats and sizes including blocks, pads, sheets and rolls, and 3 luxurious textures; hot press, cold press, and rough. Made on a cylinder mould and gelatin sized to the core, repeatedly correct mistakes or use heavy washes while preventing buckling or warping. Being made from 100% natural cotton fibre with no optical brightening agents, Arches paper has an archival, natural white colour and an exquisite texture unlike other papers on the market. This lasting, natural white colour lends our paper its exceptional beauty while cotton fibres provide astounding strength.