Worn once. Lying flat is 12.5 inches wide. A little over 17 inches long. Fit me at 34B comfortably, slightly loose. Would recommend for someone whose chest is a little larger or if you prefer to wear over a button down shirt. Site description: Really serves as the catalyst—and ultimate layering tool—for our seasonal wardrobe transition. A 12 mo’er for sure, this future WOF (we truly believe in its potential) can be paired with virtually any bottom; we love the idea of tailoring juxtaposed with the bareness on top to achieve the ideal balance of slim and skin. 90% Cashere 10% Elastane