From the Sewaholic website:
"Sew a sports bra or tank top that looks as professional as ready-to-wear! The Dunbar Top or Sports Bra is fully lined, with a powernet shelf bra that includes pockets for optional padding or removable bra cups. Racerback styling and contrast seaming gives it a cool modern look. Choose high-impact contrast like black and white, or opt for tone-on-tone fabrics for a subtler look. Edges are bound with fabric binding strips. View A is a mid-hip length tank top with a shelf bra lining. View B is a sports bra with elastic along the lower edge.
Bonus: You don't need a serger to sew this bra or tank top!"