The black mutton collar (not detachable, I don' think they make them detachable) is full and plush with no bald patches. It's a boxy jacket and as heavy/thick as their front quarter horsehide but without the stiffness associated with FQHH until it is broken and you can also get it to stand up on its own. You should be a suit size 42 for a good fit but check the measurements below. Back length from bottom of collar.I have taken enough photos for you to see everything. The item "Aero Highwayman HEAVY Steerhide Steer Hide Black Leather Jacket Mutton Collar" is in sale since Sunday, February 7, 2021. This item is in the category "Clothes, Shoes & Accessories\Men\Men's Clothing\Coats, Jackets & Waistcoats". The seller is "simplethingsinlife" and is located in United Kingdom. This item can be shipped to all countries in Europe, United States, Canada.