So incredible, at first we couldn't believe it! I got one of these for Inktober and none of my work cast even a shadow on the back of the page! The 5.5"x8.5" notebook has 48 super smooth pages. Both of the larger sizes have 32 pages.
From the manufacturer:
RENDR No Show Thru Paper is a revolutionary paper that allows you to use 100% of the sketchbook. RENDR Paper accepts all media. No more limitations to what types of media you use in your sketches. Media on one side of the paper will not show or bleed through to the other side. No more tearing out the next page. RENDR paper products are your legacy, your history, your thought process documented.