Basic tank suits may be functional, but they're not much fun. Here are some fashionable, wedgie-proof numbers you can really swim in.
Clockwise, from top left:
1. TYR top and bottom, $31 each; zappos.com. Adjustable straps ensure a snug fit.
2. Adidas by Stella McCartney, $120; adidas.com. Thick straps and back fasteners stay put.
3. Speedo, $82; speedousa.com. Four-way stretch prevents riding up.