I got my cashmere blazer from Graham Browne this week, commissioned a couple of months ago following the plan more more soft, unlined jackets (post here).
The cloth is from W Bill, cashmere and in a rather chunky, open weave that makes it even softer to wear. The buttons are wooden, from haberdashers MacCulloch & Wallis just off Bond Street. Three button, it features patch breast and hip pockets, each with their own welt. There is also a collar tab that fastens across the neck and a button under the lapel to button there. I also went for a half lining, to enhance that sweater-like design.