The wool is probably what's called tropical weight and has a nice hand to it. It's a joy to sew, very cooperative under the machine foot and pressed beautifully. It's a cross weave or shot, with black threads on the weft and off-white on the warp thread. The overall effect is of course gray. I tried using black dupioni silk as the contrast in the collar and pocket top but it's too stark so now I've decided on using the wool for all pieces. It may result is a rather boring garment (I hope not!) but I'm pretty sure I'll get more use out of it this way.
OK, wrong, I'm not following the instructions perfectly. I already dislike the pocket - it is unlined. This would be fine with some fabrics, but this light-weight wool needs lined pockets, so lined they are! They look a lot longer than in the picture but, for now, I'm sticking with them.