7 Best Tummy-Control Swimsuits That Actually Smooth 2026

Frequently asked questions

Fit matters above all. “To size yourself, measure the fullest part of your bust, your waist (the narrowest part), and your hips (the widest part),” says Monti Landers, founder of Riot Swim, who recommends checking out the brand’s size chart as a guide. If you’re between sizes, it’s usually better to size up. Overly tight suits tend to dig in and feel worse over time.

Pay attention to construction. Adjustable straps can make a big difference, particularly if you have a shorter or longer torso. Shopping for a swimsuit for a large bust? Look for features like underwire, molded cups, or wider straps. And when you’re choosing between styles, think about how you’ll actually wear it—lounging, swimming, chasing a kid around—since that can change how much support you’ll want.

Glamour shopping editors and contributors tested more than 20 tummy-control swimsuits over multiple weeks, wearing them to the beach and pool to assess real-world fit, comfort, and support. Each style was evaluated for how it shaped and held through the midsection without digging in, as well as key construction details like lining, compression panels, seams, and strap adjustability. We considered how the suits felt after hours of wear and how well they held up after washing. Only styles that consistently felt flattering, comfortable, and well-made earned a spot on this list.