J Crew vintage cable-knit sweater vest in grey. Quality fabric: 40% merino wool, 30%rayon, 20% rabbit hair, and 10% cashmere. Pairs well with a collared shirt for a classic work fit. Size XS, and shorter cut, so it looks good with high-waisted slacks or jeans. I am a size 4 or 6, and it fits me comfortably, with a shirt underneath, though I am a D-cup and think it's more ideal for smaller breasts.