The main invitation card acts as a "postcard"; on the back, a handwritten message lets guests know the date, time and location of the event.
The reply card acts as an actual postcard (Karie and Chris' address is on the back), so a thick 220# cotton stock was used to cut down on show-through, allowing for a much deeper impression. In turn, this helped with getting more even ink coverage on the sign, skyline and poker chips.