The SILITEELON SLEEVELESS BUTTON DOWN SHIRT is the perfect summer shirt to wear to work in an office that has a business-casual dress code. It looks dressy and could be mistaken for a silk blouse. It is actually a polyester blend with quite a bit of stretch to it.If you have large breasts, you won't have to worry about this visibly pulling or gaping at the buttons because they're actually hidden behind a panel that covers them from the front. This top has a good amount of stretch and seems to have been cut with a couple extra inches in all the right places. This top seems to have been designed to accommodate, flatter, and fit curves without ending up loose and oversized or overly tight.The blouse has a forgiving drape to it when untucked, and it also looks good tucked in. You can belt over it for a little extra styling. It goes equally great paired with dress pants or a skirt. I got it in red, and I love the color. It's got a nice collar; the blouse can be buttoned all the way up to it for a prim look. You can also leave it unbuttoned low enough to show some cleavage. You don't even have to wait for a hot day to wear it. You can wear it with the collar peeking out from underneath a sweater right now, and it is February.I suggest you order your usual size. I like the way it fits. It doesn't gape at the armpits or pull tight anywhere. It is long enough to cover my hips. If you are between sizes, go with the larger size. I sometimes wear blouses in a large size, but more often in an extra large. This is extra large and it fits me really well.I think the quality on this is pretty good, and an extra button came with it just in case you lose one. If you dress for work, this is a great solid-color separate to add to your wardrobe. It is easy to wear, comfortable, and professional-looking, despite being sleeveless. It also doesn't require dry-cleaning. This is well worth the current $19.99 price.