Beautiful Saint John knit jacket in size too. This is a longer style jacket to cover the rear. Beautiful Saint John knit jacket in size 2. This is a longer style jacket to cover the rear. Armpit to armpit is 20 inches armpit armpit is 20 inches. Sleeve length is 22 inches. This is a beautiful jacket that has been very gently worn and it is navy and white even though the photos look more like black-and-white. Great with a navy skirt or a white skirt or pants. Wears larger than a two.