Vintage 70 Leather 'Concept One' Jacket

Great vintage piece in excellent condition. Leather is a great 70s burnt orange, and broken in, so it moves easily. Listed as a size 11/12 but fits a little on the small side. Only imperfection is the missing thread around the bottom lining (see pics). Measurements are as follows: pit to pit 16.5”, shoulders are 15.5” from seam to seam, total length is 27” from bottom of collar to bottom of jacket.