Size TTS, I picked up a 38 and has enough room for layering a shirt or light knit. I think you can alter this but a size up would be too big.. It is unstructured and the wool lends itself to stretching. Not sure what type of wool but feels nice. Soft but with a hint of texture in the hand that scratches a bit. Nowhere near lambswool like, but I would not say it is entirely smooth as well. The lining and the lapel wool is also different. Lapel and 1/4 the lining where the buttons are is also like shearling.
*sigh* i just bought two Nuur items. Thanks a lot gettoasty