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How to find bikinis that fit and flatter

The biggest difference between bikinis that make you feel great and ones that don't? Fit. Triumph brings decades of bra-fitting expertise to our swimwear, which means bikini tops come in actual bra sizes rather than vague S/M/L labels. If you know your bra size, you already know your bikini top size. If you're not sure, our bra size calculator works just as well for swimwear. Proper cup sizing means real support, even in the water.

Bikini sets are the easy option, but mix and match gives you more flexibility. Pair a supportive underwired bikini top with high waist bikini bottoms for extra coverage and a retro silhouette. Or go for a triangle bikini top with classic tie-side briefs for a relaxed, sun-soaked look. Triumph bikini tops and bikini bottoms are designed to coordinate across prints and plains, so you can build a holiday capsule that works for every mood.

For women with a fuller bust, look for bikini tops with the same features you'd want in a bra: wider straps, a secure underband, and lined cups that hold their shape when wet. Our fuller cup expertise carries straight into our swimwear line, so you won't have to choose between support and style. Adjustable straps and back closures let you fine-tune the fit to your body.

Don't overlook the details that make beach days easier. Quick-dry fabrics, chlorine-resistant finishes, and UPF-rated materials mean your bikinis look fresh season after season. Whether you're a pool swimmer, a beach lounger, or someone who needs beachwear that survives actual swimming, Triumph has you covered. Browse the wider swimwear collection for one-pieces and tankinis too.

Planning ahead for your next holiday? Start building your swimwear edit now. Check our Now or Never section for limited-availability styles, or explore the sale for off-season deals. Pair your bikinis with a lightweight cover-up and you're ready for wherever the sun takes you.

How to find bikinis that fit and flatter

The biggest difference between bikinis that make you feel great and ones that don't? Fit. Triumph brings decades of bra-fitting expertise to our swimwear, which means bikini tops come in actual bra sizes rather than vague S/M/L labels. If you know your bra size, you already know your bikini top size. If you're not sure, our bra size calculator works just as well for swimwear. Proper cup sizing means real support, even in the water.

Bikini sets are the easy option, but mix and match gives you more flexibility. Pair a supportive underwired bikini top with high waist bikini bottoms for extra coverage and a retro silhouette. Or go for a triangle bikini top with classic tie-side briefs for a relaxed, sun-soaked look. Triumph bikini tops and bikini bottoms are designed to coordinate across prints and plains, so you can build a holiday capsule that works for every mood.

For women with a fuller bust, look for bikini tops with the same features you'd want in a bra: wider straps, a secure underband, and lined cups that hold their shape when wet. Our fuller cup expertise carries straight into our swimwear line, so you won't have to choose between support and style. Adjustable straps and back closures let you fine-tune the fit to your body.

Don't overlook the details that make beach days easier. Quick-dry fabrics, chlorine-resistant finishes, and UPF-rated materials mean your bikinis look fresh season after season. Whether you're a pool swimmer, a beach lounger, or someone who needs beachwear that survives actual swimming, Triumph has you covered. Browse the wider swimwear collection for one-pieces and tankinis too.

Planning ahead for your next holiday? Start building your swimwear edit now. Check our Now or Never section for limited-availability styles, or explore the sale for off-season deals. Pair your bikinis with a lightweight cover-up and you're ready for wherever the sun takes you.

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Find Your Fit

Triumph Size Chart

GB SIZES
EU SIZES
SHAPEWEAR
"SMART" SIZES
SWIMWEAR
Underbust (cm)
Waist (cm)
Hips (cm)
8 10 12 14 16 18 20 22 24 26 28
XS S M L XL XXL
60 65 70 75 80 85 90 95 100 105 110
1 2
32/8 34/10 36/12 38/14 40/16 42/18 44/20 46/22 48/24 50/26 52/28
68-72 73-77 78-82 83-87 88-92 93-97 98-102 103-107 108-112 113-117 118-122
65-69 70-74 75-79 80-84 85-89 90-94 95-99 100-104 105-109 110-114 115-119
89-92 93-97 98-102 103-107 108-112 113-117 118-122 123-127 128-132 133-138 139-143

How to measure your bra size

Measure yourself with your smartphone camera, no measuring tape needed
Helps you to measure yourself, measuring tape required