: As the largest online swim shop in the U.S., this is the gold standard for anyone from competitive athletes to casual vacationers. They carry over 500 brands, including their highly-rated house brand, Sporti , which offers premium quality for 30–50% less than name brands.

: Miraclesuit and its sister line Magicsuit are the industry leaders in compression fabric that provides firm shaping.

: Unmatched for sheer volume and speed. Amazon is the best place to find niche styles or affordable brands like Cupshe and Summer Mae. Its "Try Before You Buy" program and extensive customer photo reviews make it a leader for home try-ons. Specialized Shopping by Need

: Summersalt is famous for its "Sidestroke" suit, which uses data from thousands of body scans to ensure a flattering fit. For dedicated plus-size engineering, Swimsuits For All and Torrid offer extensive style ranges up to size 30.

If you have a specific goal, these specialty boutiques often outperform general retailers: