Also referred to as Rooster skin or Mort, This really is leather from unborn animals, and is not normally useful for footwear since it’s way too skinny. Valerie Cummings writes in her book Gloves that inside the late 18th century, Slink was used in Irish Limerick gloves, The lunch dress. https://gunnerfgplr.blog5.net/76472782/the-ultimate-guide-to-leather-upper