Another tip- don't bother with the Nightlife $20 strap-on vest with the open sides and velcro straps- way to annoying....shifts around and is flimsy.
The regular zip up vest is fabulous in every way.

By the way, for summer-
http://www.holabirdsports.com/cgi-bi...product=051193
this tank top is sturdy, like a well made bathing suit, and has a built in bra. Click "see more images" to see the back- it has sufficient yellow on the back for biking visibility. It runs a bit small so order a size larger than usual.

The yellow on all the Nightlife items is SO bright that you don't need that much of it to blind people from far away! That's one reason I like the tights and knickers with the yellow on the backs of the calves.