Old Navy Strappy Powersoft Shelf-Bra Tank Top For low-impact exercises, this Old Navy Strappy Powersoft Shelf-Bra Tank Top ($12-$30, originally $34) works well on its own, no separate bra needed. Image Source: oldnavy.gap.com Old Navy Strappy Powersoft Shelf-Bra Tank Top $12 from oldnavy.gap.com Buy Now