Made by Sunabe Marine in Okinawa. The material is skin, and it's a 3mm wetsuit long-sleeved diving jacket. There is some dirt and wear on the lemon yellow stitching. The size is as shown in the photos, equivalent to a men's M size (I am 170cm tall, 85cm chest, 64kg, male). It's a front-opening type with zippers on the wrists, making it easy to put on and take off. There is some staining due to aging, and as shown in the photo on the far right, there are marks where a name was erased with a marker on the inside. Please understand this point and consider purchasing.