paper specifications

The 12.5 x 10 Hardcover Portfolio book comes with Photo Silk paper which is produced using 80# text coated Xerox Digital Silk paper (like a gloss but not glossy) and are produced with a Xerox iGen, a toner based device. The digital silk paper is not the slick shiny gloss like you see in magazines. It provides a protective coating on the paper. The blacks stand out and the images crisp, but it won't be slick. Technical specs of the paper are Digital Color Silk - C2S, 90 bright.

For more information on paper options, check this link:

http://www.prestophoto.com/wiki/Book+Binding+Specifications

PrestoPhoto Support

please can you tell me in gr/lb the paper w?