Underwire
88 items 
view
32
64
128
1
2
3
 
bra sized
Ravine Crochet Underwire Tankini Top
$110.00$66.00(40% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Ravine Bra Sized Crochet Underwire Tankini Top
s4a
642146
product listings
66.00
onepiece
 
NEW
Madeira Faux Flyaway Underwire Tankini Top
$98.00$69.00(29% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Madeira Faux Flyaway Underwire Tankini Top
s4a
640851
product listings
69.00
onepiece
 
Black Tie Front Underwire Tankini Top
$82.00$57.00(30% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Black Tie Front Underwire Tankini Top
s4a
640279
product listings
57.00
onepiece
 
SWIM STEAL
Jia Flyaway Underwire Tankini Top
$98.00$59.00(39% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Jia Flyaway Underwire Tankini Top
s4a
641497
product listings
59.00
onepiece
 
bra sized
NEW
Sweet Pea Crochet Underwire Tankini Top
$110.00$66.00(40% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Sweet Pea Bra Sized Crochet Underwire Tankini Top
s4a
640941
product listings
66.00
onepiece
 
Black Faux Flyaway Underwire Tankini Top
$98.00
Extra 40% OFF with code 520SUNNYDAYS
Black Faux Flyaway Underwire Tankini Top
Shore Club
641043
product listings
98.00
onepiece
 
bra sized
Gardenia Flyaway Underwire Tankini Top
$110.00$66.00(40% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Gardenia Bra Sized Flyaway Underwire Tankini Top
s4a
642083
product listings
66.00
onepiece
 
NEW
Arcadia Tie Front Underwire Tankini Top
$82.00$57.00(30% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Arcadia Tie Front Underwire Tankini Top
s4a
642415
product listings
57.00
onepiece
 
bra sized
Casablanca Flyaway Underwire Tankini Top
$110.00$66.00(40% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Casablanca Bra Sized Faux Flyaway Underwire Tankini Top
s4a
642288
product listings
66.00
onepiece
 
bra sized
Tiger Lily Sweetheart Underwire Tankini Top
$110.00$66.00(40% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Tiger Lily Bra Sized Sweetheart Underwire Tankini Top
s4a
642148
product listings
66.00
onepiece
 
Catamaran Tie Front Underwire Tankini Top
$82.00$57.00(30% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Catamaran Tie Front Underwire Tankini Top
s4a
642284
product listings
57.00
onepiece
 
Ocelot Faux Flyaway Underwire Tankini with Skort
$136.00$125.00(8% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Ocelot Faux Flyaway Underwire Tankini with Skort
s4a
642082SKO
product listings
125.00
package
 
Love Song Faux Flyaway Underwire Tankini Top
$98.00$69.00(29% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Love Song Faux Flyaway Underwire Tankini Top
s4a
642286
product listings
69.00
onepiece
 
bra sized
Snowbird Faux Flyaway Underwire Tankini Top
$110.00$77.00(30% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Snowbird Bra Sized Faux Flyaway Underwire Tankini Top
s4a
642289
product listings
77.00
onepiece
 
Verona Faux Flyaway Underwire Tankini Top
$98.00$69.00(29% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Verona Faux Flyaway Underwire Tankini Top
s4a
641811
product listings
69.00
onepiece
 
Ocelot Faux Flyaway Underwire Tankini Top
$98.00
Extra 40% OFF with code 520SUNNYDAYS
Ocelot Faux Flyaway Underwire Tankini Top
s4a
642082
product listings
98.00
onepiece
 
NEW
Grenadine Faux Flyaway Underwire Tankini Top
$98.00
Extra 40% OFF with code 520SUNNYDAYS
Grenadine Faux Flyaway Underwire Tankini Top
s4a
642395
product listings
98.00
onepiece
 
NEW
Madeira Faux Flyaway Underwire Tankini with Skort
$136.00$96.00(29% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Madeira Faux Flyaway Underwire Tankini with Skort
s4a
640851SKO
product listings
96.00
package
 
NEW
Belize Tie Front Underwire Tankini Top
$82.00$57.00(30% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Belize Tie Front Underwire Tankini Top
s4a
642345
product listings
57.00
onepiece
 
NEW
Riviera Tie Front Underwire Tankini Top
$82.00$57.00(30% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Riviera Tie Front Underwire Tankini Top
s4a
640557
product listings
57.00
onepiece
 
bra sized
Ravine Crochet Underwire Tankini with Banded Short
$148.00$89.00(39% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Ravine Bra Sized Crochet Underwire Tankini with Banded Short
s4a
642146BSH
product listings
89.00
package
 
NEW
Blue Crush Tie Front Underwire Tankini Top
$82.00$57.00(30% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Blue Crush Tie Front Underwire Tankini Top
s4a
642384
product listings
57.00
onepiece
 
bra sized
BEST SELLER
Ravine Crochet Underwire Tankini Set
$145.00$87.00(40% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Ravine Bra Sized Crochet Underwire Tankini Set
s4a
642146TK
product listings
87.00
package
 
Cloudbreak Tie Front Underwire Tankini Top
$82.00$57.00(30% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Cloudbreak Tie Front Underwire Tankini Top
s4a
642285
product listings
57.00
onepiece
 
bra sized
Reef Sweetheart Underwire Tankini Top
$110.00$66.00(40% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Reef Bra Sized Sweetheart Underwire Tankini Top
s4a
642290
product listings
66.00
onepiece
 
bra sized
NEW
Sweet Pea Bra Sized Underwire Tankini with Skirt
$148.00$93.00(37% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Sweet Pea Bra Sized Crochet Underwire Tankini with Slit Skirt
s4a
640941SLSK
product listings
93.00
package
 
Black Tie Front Underwire Tankini Set
$117.00$78.00(33% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Black Tie Front Underwire Tankini Set
s4a
640279TK
product listings
78.00
package
 
bra sized
Ravine Crochet Underwire Tankini with Slit Skirt
$148.00$93.00(37% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Ravine Bra Sized Crochet Underwire Tankini with Slit Skirt
s4a
642146SLSK
product listings
93.00
package
 
bra sized
Tropical Underwire Bra Sized Peplum Tankini Top
$99.99$85.00(14% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Tropical Underwire Bra Sized Peplum Tankini Top
s4a
642311
product listings
85.00
onepiece
 
bra sized
NEW
Sweet Pea Bra Sized Underwire Tankini with Short
$148.00$89.00(39% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Sweet Pea Bra Sized Crochet Underwire Tankini with Banded Short
s4a
640941BSH
product listings
89.00
package
 
Amelie Tie Front Underwire Tankini Top
$82.00$57.00(30% OFF)
Extra 40% OFF with code 520SUNNYDAYS
Amelie Tie Front Underwire Tankini Top
s4a
642459
product listings
57.00
onepiece
88 items 
view
32
64
128
1
2
3

When you’re swimming in the pool or splashing around at the beach, it’s important to feel fully supported in your swimwear. Luckily, our underwire tankini swimsuits do just that! Constructed with built-in wires, these suits truly lift, support and shape the bust for a sexy and stylish look. You can even choose between trendy, must-have styles like our tie front underwire tankini, flyaway underwire tankini, flowy underwire tankini and faux flyaway tankini. And did you know that all our underwire suits fit just like your favorite bra? It’s true! Our underwire tankinis are available in either cup-sized or bra-sized styles. Just look for the special icons to guide you directly to the specific swimwear you want! Our cup-sized tankinis are offered in cup sizes D/DD - F/G, while our bra-sized tankinis come in sizes 36DD - 46G. Besides the incredible support that our underwire styles provide, these tankinis are also full coverage and extremely comfortable. What can we say? There’s so much to love about an underwire tankini, but don’t just take our word for it. Come see them for yourself today!

Designed
for you
by the
swim experts.
VIEW OUR FIT GUIDE
Best Fit
Fit tested on real people of every size, each garment is evaluated using 40 points of measure to give you the best fit possible (really).
Thoughtful Construction
From high-quality, stay-put fabric, to no-quit elastic that goes the distance, to cups that don’t collapse, every part of our suits serves a purpose.
Uncompromised Style
Season after season, our design team travels the world in search of inspiration for each new collection, bringing you more of what you want.
VIEW OUR FIT GUIDE