Ending today, Maxwells Attic offers the Hanes Women's Bandini ComfortFlex Fit Bra 6-Pack for $18. Coupon code "MAX2036" cuts it to $16. With free shipping, that's tied with last month's mention and the lowest total price we could find for this quantity by $24. It's available in most sizes S to XL.
Note: Each 6-pack ships in random colors.