http://www.amazon.com/Barely-There-F.../dp/B0012QMEX2

I found some of these in tj maxx today - barely there, flawless fit model. stretchy, no underwire. they were $5.99. They did have a 38a/b size.

they were the only non-underwire bras I found, and also the only ones that weren't padded. who the heck wants to buy padded bras in a dc summer???