Get this one: $8
http://www.walmart.com/ip/Faded-Glory-Women-s-Classic-Denim-Jacket/47324980Order site to store for free shipping (and go through ebates for 80 cents back). I ordered in white, it's a nice weight, not too boxy, and hits right at the waist.
I tried it on before we left the store fully intending to just return it. Nope. It's good.