Actually, when I looked at it before ordering, I thought the blouse was a one-piece with a layered design, sewn together only at the bottom. But it turns out to be two separate t-shirts stitched together at the shoulders. So we're basically wearing two t-shirts instead of one, which can be quite hot, especially in our Asian climate. The blouse looks really nice, though — I’m just not sure when to wear it, especially with the current hot weather.