There will be cords out soon as the shops bring their autumn/winter ranges in. Aside from this and maybe combat type trousers I can't think of any other kinds!
I like the jogging bottom types. They seem comfy and are easily washed. Not really a fan of them having a "sporty" stripe down the side or number/logo on, but plain isn't too hard to find. I just wish they did them in nice bright colours for boys. Stuck with grey, brown, black or navy blue. Found some red ones in Gap the other day.