Without a doubt, my favourite thing about pre-1960s vintage menswear is the huge variety of weaves from pretty boring to batshit crazy. While not in the upper end of the crazy, the diamond weave is amongst those strident weaves that have fallen from general favour. This late 1930s/early 40s jacket is made of very large diamond weave stuff in cream and brown “oatmeal” colours. Super size the images to get a clear view of the cloth … The fabric is super soft, almost feels like cashmere. Love the “tulip” breast pocket!