Over those I wear a pair of wind pants, and I'm set to go. This includes jeans, sweaters and socks. Bring along a couple of tee-shirts and shorts, but leave it at that. Cotton retains moisture, and wet or even damp clothes mean cold bodies. And once cotton gets wet, it usually stays that way for a few days.
Nothing saps the fun out of camping like wet clothes.
Foot Gear . Have along a pair of camp shoes, usually sneakers, that are comfortable to just wear around. If you're doing any serious hiking or backpacking, outfit yourself with a good pair of boots. Don't skimp on quality here, especially if you're going to be logging in a lot of miles in them. Again, your sales person is invaluable here.