I need help finding this dress!

I found a couple of white dresses on the H&M site – none have t-shirt style sleeves, but they’re cute:
http://www.hm.com/gb/product/84387?article=84387-A
http://www.hm.com/gb/product/84153?article=84153-A

Not exactly what you were looking for, I know, but they have the same kind of feel, I think. You could wear one of these with a short-sleeved cardigan, maybe.

@Seelix Thanks! They aren’t exactlly like the other one, but they are really cute! And definitely cheaper.

If you know the brand of the pictured dress then you can google it in images and I guarantee you’ll find a company using the stock designer picture but selling it as a knock off for a lot less. Chinese companies are famous for this when it comes to evening gowns, bridal wear, prom wear. You might not get the fabrics of the original designer and the details such as stitching and beading might be slightly different but at first glance, you’ll have what you want.

@Neizvestnaya I didn’t think of that. Thanks! I will definitely check it out.