There are two main types of mohair on the market, Stayfast and Twilfast.
Twilfast is the best you can get and will last many, many years and used by prestige car makers like Bentley and BMW.

 WE ONLY USE TWILFAST FOR OUR HOODS.
Stayfast is the cheaper, thinner alternative, that over time will stretch and sag.

The rear window is made from the same plastic and of the same thickness as the original and is bonded and stitched to the hood.

The hoods have the relief pockets and elasticated straps as per the originals.