SheIn offers the SheIn Women's Deep V-Neck Sleeveless Flare Dress in Pink for $16.90. Coupon code inst33 drops it to $16.28. (Uncheck the shipping insurance box at checkout to see this price.) With free shipping, that's $8 off list and the lowest total price we could find. It's available in sizes S to L.

Buy Now

Note: It ships from mainland China and should arrive in three to four weeks.