As one of its daily deals, Deal Genius offers this Women's Monokini Swimsuit in six colors (Black pictured) for $14.99 with free shipping. That's $5 under the price of a similar swimsuit elsewhere. It's available in sizes S to XL. Deal ends today.
Target cuts up to 70% off a selection of women's clearance swimwear, with deals starting from $5.38. Shipping starts at $4, but orders of $25 or more bag free shipping. (Select items are available via in-store pickup.) Note that stock is very limited. A couple of best bets: