IMO Eastman Leather Clothing make the most accurate repro Irvins on the market at the moment. The only thing that lets them down is the zips, especially the main zip which has a Lightning style slider/pull and a Dot style slider box. I own two, one with a honey coloured fleece and a thicker sheep skin than the other which is darker and has less grain. The honey-coloured fleece jacket has an all metal main zip, whilst the other has a plastic male end. I am not sure exactly when they were made, but I enjoy wearing both on a regular basis and especially when I don't want to risk damaging one of my originals. Of the two jackets the one with the honey fleece is nearer to an original. This is a size 42 and the other is a size 44.
Here are some pictures by way of comparison.
Here are some close-up pics of the details.
Here are some pictures by way of comparison.
Here are some close-up pics of the details.