I may have just pulled out a ruler to measure the width of my strap. 1/2".

Unfortunately, this bra was NOT cheap. It's called Jude by Cleo by Panache (a mouthful, I know). The website I like to look at is figleaves.com. They have an "outlet" section (and I may have just noticed that they have this style bra, in my size, 50% off...).