We use Hahnemühle Photo Rag paper. It is a high-end fine art paper made of 100% cotton with an archival lifespan. This paper is characterized for its high quality and is specially designed for Fine Art applications. The combination of the cotton artist paper and the high-gloss inkjet coating lends FineArt prints a striking character with a beautiful, elegant sheen, without glare. Photo Rag is acid- and lignin-free and meets the most exacting requirements in terms of age resistance.