My 1100 came with a Pachmayer. It is thin but it works very well, and it's only a 20 gauge anyway.
FWIW, when I put a Hogue Overmolded stock on my 870, it came with a Hogue recoil pad, and I've found it is really nice. It's so soft, I imagine the material will get torn up over time, but it can be replaced.