It would not get Substantially lighter and breezier than a tank top, but if you want to go with the lightest and breeziest of tank tops, ASRV has you covered with a performance racerback. Saturdays NYC has, unsurprisingly, a great cotton rib tank for wearing on a Saturday in NYC. https://dogdogtoys18530.blogoscience.com/38110805/5-simple-techniques-for-what-bra-to-wear-with-tank-top