When you need a heavy ivory colored card stock, the answer is Cougar Natural 130lb cover weight Card Stock. This sturdy card stock is perfect for those jobs that need a heavy weight card stock. Be sure to check your individual printer specifications for printing on this heavy weight card stock. It may be necessary to take this stock to a professional printer. Here at CutCardStock, we carry a wide variety of sizes in the matching. Cougar Natural Envelopes.