I also sew a seat covering for a pulka keeping eye on comming winter. Long time ago I crashed at 100% sheep wool teddy fabric and bought the whole pack of it with a friend and then we shared it. I still have a bit left and I already miss more of it. So warm and useful! I have made several baby blankets of it for example.
Here is seat covering for a pulka. It is made of 100% sheep
wool teddy fabric. The lining is 100% sheep wool too. It is made for
arctic outdooring for a little boy. There's also woollen socks for the
same little man. You see often seat coverings made of animal skin -like
sheep or reindeer- but this 100% sheep wool teddy fabric is good option
also for those people who don't wan't to use anyone else's but their own
skin & fur. :) Seat covering and socks are both my own design but you don't need to be a genius to be able to design and sew a seat covering -not to mention about woollen socks. :)