Women's Athletic Swimwear

find a swimsuit built for you

Halter or high-neck, bikini or boyshort – you pick the styles and we’ll find your perfect match.

Mix & Match Swim Finder

FEATURED SWIMSUITS
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Product 0: Metis Underwire Tankini - Triangulate
Metis Underwire Tankini - Triangulate
Black/white
$85
We don’t need to be a Greek goddess to appreciate this bra-sized shape-shifter. Tank or x-back, full coverage or sassy styling, we are in charge of our swim, our style and our support. Adjustable straps, cup-band sizing and concealed underwire team up with dialed-in fit and support. Wrap-style front. Fully lined. By Title Nine. 32C-38DD.
Product 1: Metis Bikini Top - Triangulate
Metis Bikini Top - Triangulate
Black/white
$75
We don’t need to be a Greek goddess to appreciate this bra-sized shape-shifter. Tank or x-back, full coverage or sassy styling, we are in charge of our swim, our style and our support. Adjustable straps, cup-band sizing and concealed underwire team up with dialed-in fit and support. Wrap-style front. Fully lined. By Title Nine. 32C-38DD.
Product 2: Selkie High Neck Bikini Top - Triangulate
Selkie High Neck Bikini Top - Triangulate
Black/white
$59
At home in the salty sea spray, but unafraid to take to dry land. Secure, high neckline and smooth, sleek seaming ensure our fluid movements aren’t interrupted by wardrobe-fix reflexes. Simply pull and tie to adjust straps and back. Racerback styling. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 3: Holy Grail Bikini Bottom - Triangulate
Holy Grail Bikini Bottom - Triangulate
Black/white
$49
Our Holy Grail low rise bikini bottom delivers a surprisingly flattering fit on just about everybooty. The Holy Grail indeed. Ruched side panels. Fully lined. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 4: Selkie High Neck One Piece Swimsuit - Triangulate
Selkie High Neck One Piece Swimsuit - Triangulate
Black/white
$99
At home in the salty sea spray, but unafraid to take to dry land. Secure, high neckline and smooth, sleek seaming ensure our fluid movements aren’t interrupted by wardrobe-fix reflexes. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 5: Impossible One Piece Swimsuit - Maeve
Impossible One Piece Swimsuit - Maeve
Blueberry
$89
She’s back and she’s ready for more waves and wipeouts: The Impossible. We were told it was impossible to design a swim top with the custom fit and support of a halter, and without the pain that comes from cranking down a neck tie. Well, we’ve never met impossible—till we met this suit. Ties in the back, anchoring the chest band and shoulder straps in the center of our backs. Voilà! Braided racerback detail. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 6: Impossible Bikini Top - Maeve
Impossible Bikini Top - Maeve
Blueberry
$59
She’s back and she’s ready for more waves and wipeouts: The Impossible. We were told it was impossible to design a swim top with the custom fit and support of a halter, and without the pain that comes from cranking down a neck tie. Well, we’ve never met impossible—till we met this suit. Ties in the back, anchoring the chest band and shoulder straps in the center of our backs. Voilà! Braided racerback detail. Pullover. By Title Nine. XS(0-2), S(4-6), M(8-10), L(12-14), XL(16).
Product 7: Holy Grail Swimsuit Bottom - Solid
Holy Grail Swimsuit Bottom - Solid
$49
The low rise bikini bottom that delivers a surprisingly flattering fit on just about everybooty. The Holy Grail indeed. Made of SurFlex™, our resilient, colorfast, UPF 50 swim fabric that shadows our every move, but never stretches out. Ruched side panels. Fully lined. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 8: Woman Up High Neck Tankini - Color Shield
Woman Up High Neck Tankini - Color Shield
Titanium
$79
We like to move it, but don’t want to lose it—our suit, that is. Flimsy triangles be damned, we demand a suit built to lap the competition, made to make waves. It’s time to Woman Up. Sturdy, wire-free, powermesh sling system construction gives us the support we need for diving deep and dashing down the beach. High neck. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 9: Lehua Bikini Bottom - Color Shield
Lehua Bikini Bottom - Color Shield
Titanium
$52
When we’re ready to cause some trouble but can’t be bothered by fussy bottoms, these stay put through every antic. Fully lined. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 10: Woman Up High Neck Bikini Top - Color Shield
Woman Up High Neck Bikini Top - Color Shield
Titanium
$69
We like to move it, but don’t want to lose it—our suit, that is. Flimsy triangles be damned, we demand a suit built to lap the competition, made to make waves. It’s time to Woman Up. Sturdy, wire-free, powermesh sling system construction gives us the support we need for diving deep and dashing down the beach. High neck. Pullover. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 11: Paddle Board Short
Paddle Board Short
$59
When bikini bottoms are too little and boardshorts are too much, these paddle board shorts are just right. Run short-inspired styling with a built-in brief. Made of SurFlex™, our resilient, colorfast, UPF 50 swim fabric that shadows our every move, but never stretches out. By Title Nine. XS(2), S(4-6), M(8-10), L(12), XL(14).
Product 12: Woman Up High Neck One Piece Swimsuit - Color Shield
Woman Up High Neck One Piece Swimsuit - Color Shield
Titanium
$99
We like to move it, but don’t want to lose it—our suit, that is. Flimsy triangles be damned, we demand a suit built to lap the competition, made to make waves. It’s time to Woman Up. Sturdy, wire-free, powermesh sling system construction gives us the support we need for diving deep and dashing down the beach. High neck. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 13: Pele Tankini - Solid
Pele Tankini - Solid
$79
Built for fiery goddesses, the Pele is a creator of shape and support, destroyer of the notion that strappy styles aren’t for full cups. Full coverage underwire cups with removable modesty. Made of SurFlex™, our resilient, colorfast, UPF 50 swim fabric that shadows our every move, but never stretches out. Racerback-like support. Adjustability at neck. By Title Nine. 32C-38DDD.
Product 14: Set It And Forget It Bikini
Set It And Forget It Bikini
$54
Our classic “set the support you want and forget about it” suit is back and better than ever. Cut-and-sew cups deliver coverage and support, and yes, they still work for A cups. Halter styling lets us decide how much support we need: tighten to find that perfect fit and say goodbye to all-day adjusting. Made of SurFlex™, our resilient, colorfast, UPF 50 swim fabric that shadows our every move, but never stretches out. Ties at back. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 15: Lehua Swimsuit Bottom - Solid
Lehua Swimsuit Bottom - Solid
$52
When we’re ready to cause some trouble but can’t be bothered by fussy bottoms, these stay put through every antic. Made of SurFlex™, our resilient, colorfast, UPF 50 swim fabric that shadows our every move, but never stretches out. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16)
Product 16: Tsunami Tankini Top - Seurat
Tsunami Tankini Top - Seurat
Blueberry Dot
$85
Built for sisters with serious swells. A firm elastic band and underwire cups team up for stellar support, no matter how wild the tidal rave gets. "X-back" styling with a racerback feel. Top lined. By Title Nine. 32C-38DD
Product 17: Paddle Board Swim Skirt - Solid
Paddle Board Swim Skirt - Solid
Black
Blueberry
Adriatic Blue
Tidal
$59
Whoever said swim security only comes in a board short cut never met our Paddle Board Skirt. The just-right length gives us the freedom of movement that we want. Built-in brief gives us the coverage we need. Made from fast-drying SurFlex™ and equipped with a secret stash pocket, it goes from deck to diving in, all summer long. Fixed, foldover-style waist with shirred sides hides a firm, stay-in-place waistband. Great for skort lovers ready to make a splash. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 18: Tsunami Bikini Top - Seurat
Tsunami Bikini Top - Seurat
Blueberry Dot
$75
Built for sisters with serious swells. A firm elastic band and underwire cups team up for stellar support, no matter how wild the tidal rave gets. Pullover with a racerback feel. By Title Nine. 32C-38DD.
Product 19: Wahine Swim Shorts
Wahine Swim Shorts
$62
Do not send a girl to do a woman's job and do NOT give us an itsy-bitsy bottom when we are grown women. We are wahines, and we rely on this short to keep us comfortable and confident. When bikini bottoms are too little and boardshorts too much, we don the Wahine. Run short-inspired with drawstring and built-in brief. Fast-drying, abrasion-resistant, woven outer. By Title Nine. XS(2), S(4-6), M(8-10), L(10-12), XL(14).
Product 20: Aquatic Life Rash Guard
Aquatic Life Rash Guard
Blueberry Stripe
$75
Under water or the sun’s rays, this rash guard is ready for our aquatic life. Dense nylon/spandex saves from foes, board rash and sunburn. By Title Nine. S(4-6), M(8-10), L(12-14), XL(16).
Product 21: Better Tankini 2.0 - Botanica
Better Tankini 2.0 - Botanica
Blueberry Floral
$69
Better because it adjusts for a custom fit. Better because it emerges unscathed from riding waves both tall and small or navigating grabby wee ones. And now, it’s even better. Calling this the “Best Tankini” doesn’t leave us room to continue the evolution, so meet the Better Tankini 2.0. We took our original Better Tankini and revved it up with wider straps for greater coverage and comfort. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 22: Better Bikini Top 2.0 - Botanica
Better Bikini Top 2.0 - Botanica
Blueberry Floral
$59
Better because it adjusts for a custom fit. Better because it emerges unscathed from riding waves both tall and small or navigating grabby wee ones. And now, it’s even better. Calling this the “Best Bikini” doesn’t leave us room to continue the evolution of bikinis, so meet the Better Bikini 2.0. We took our original Better Bikini and revved it up with wider straps for greater coverage and comfort. Pullover. Fully lined. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 23: Holy Grail Bikini Bottom 2.0 - Botanica
Holy Grail Bikini Bottom 2.0 - Botanica
Blueberry Floral
$49
Only the Holy Grail 2.0 low rise bikini bottom delivers a surprisingly flattering fit on just about everybooty. The Holy Grail 2.0 indeed. Svelte, streamlined rear coverage sister of the Holy Grail Bottom. Ruched side panels. Fully lined. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 24: Zenith Long Sleeve One Piece Swimsuit - Botanica Stripe
Zenith Long Sleeve One Piece Swimsuit - Botanica Stripe
Blueberry Floral
$129
The ultimate swim solution: bottoms and a rash guard that we’ll never lose, no matter how hard we wipe out. Secret built-in shelf bra keeps things one-and-done. Kitesurfing, SUPing, snorkeling and maximum UV protection all in one sporty suit. Ties at back of neck. By Title Nine. XS(0-2), S(4-6), M(8-10), L(12-14), XL(16).
Product 25: Aquamini Skirt - Botanica Stripe
Aquamini Skirt - Botanica Stripe
Blueberry Stripe
$65
When our fave boardshorts take a rest day, we reach for this water-ready pull-on. Aquatic friendly thanks to a swim-ready knit of nylon/spandex, in a just-right cover-our-assets length. Attached wrap styling. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 26: Pele Bikini - Solid
Pele Bikini - Solid
$69
Built for fiery goddesses, the Pele is a creator of shape and support, destroyer of the notion that strappy styles aren’t for full cups. Full coverage underwire cups with removable modesty. Made of SurFlex™, our resilient, colorfast, UPF 50 swim fabric that shadows our every move, but never stretches out. Racerback-like support. Adjustability at neck. Fully lined. By Title Nine. 32C-38DD.
Product 27: Set It And Forget It Tankini
Set It And Forget It Tankini
$64
Our classic “set the support you want and forget about it” suit is back and better than ever. Updated cut-and-sew cups deliver improved coverage and support, and yes, they still work for A cups. Halter styling lets us decide how much support we need: tighten to find that perfect fit and say goodbye to all-day adjusting. Made of SurFlex™, our resilient, colorfast, UPF 50 swim fabric that shadows our every move, but never stretches out. Elasticized underbust. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 28: Fearless Bikini Top - Colorblock Dot
Fearless Bikini Top - Colorblock Dot
Multi Dot
$55
An aquatic stunner that boldly borrows the best from both worlds—skimpy bikini swagger with where-it-counts coverage. A hybrid bikini that is impervious to clawing kids or crashing cannonballs. Bombs away! Pullover. By Title Nine. XS(2-4), S(6), M(8-10), L(10-12), XL(14).
Product 29: Lehua Bikini Bottom - Mini Dot
Lehua Bikini Bottom - Mini Dot
Black/white Dot
$52
When we’re ready to cause some trouble but can’t be bothered by fussy bottoms, these stay put through every antic. Fully lined. By Title Nine. XS(0-2), S(4-6), M(8-10), L(12-14), XL(16).
Product 30: Bond Alumni One Piece Swimsuit - Mini Dot
Bond Alumni One Piece Swimsuit - Mini Dot
Black/white Dot
$99
When action-ready Bond girls grow up, those women start working for themselves, and start demanding attention be paid to what their suit does for them, versus what it does (or doesn’t) expose. Covers more than the basics in more than one way. Includes built-in support and a locking front zip to let sun exposure match our moods. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 31: Capitola Bikini Top - Kalani
Capitola Bikini Top - Kalani
Kalani Multi
$68
The lovechild of our most comfortable t-shirt bra and our favorite bikini top. Crafted in specific cup sizes, the Capitola’s unique x-back style means with one tug and a tie, we can custom-fit our support, so we can focus on catching the next big set instead of where our bikini is riding off to. X-back. Pullover. By Carve Designs. 34-38 C-DD.
Product 32: Hoku Swim Skirt - Solid
Hoku Swim Skirt - Solid
Black
$64
The surprise star of the swim party. Part mini skirt, part cover-up, completely ready to dive in. An all-in-one swim bottom with a stay-put elasticized waist and built-in brief. By Carve Designs. XS(2-4), S(6), M(8-10), L(10-12), XL(14).
Product 33: Goldie One Piece - Kalani
Goldie One Piece - Kalani
Kalani Multi
$88
The Goldilocks-and-loaded one-piece choice for those who want a minimalist suit without going full-blown centerfold. Delivers itsy bitsy bikini spirit with sufficient coverage where it counts, makin’ it a top choice for hard-charging maximizer mamas who believe floss is only for teeth. Fully lined. By Carve Designs. XS(2-4), S(6), M(8-10), L(10-12), XL(14).
Product 34: Mavericks Long Sleeve Rash Guard - Kalani
Mavericks Long Sleeve Rash Guard - Kalani
Black Kalani
$68
For women who make big waves and ride even bigger ones. Full coverage like this fears no wipeout. ½ zip styling. By Carve Designs. XS(0-2), S(4-6), M(8-10), L(12-14), XL(16).
Product 35: Sunbuster Long Sleeve Pullover - Solid
Sunbuster Long Sleeve Pullover - Solid
Coral Reef
White
Tidal
Wild Lime
$64
Better than sunscreen. Kills UV rays while waiting for the next big set or perfect for post-session. Quick-dry poly/spandex soothes and protects sun-weary skin. Cnter front ¼-zip styling. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 36: Go Natural Spring Onesie Wetsuit
Go Natural Spring Onesie Wetsuit
Ink Black
$149
All the insulating warmth and buoyancy of neoprene we love, born out of nature. Yup, the magic of this soft, stretch sleeveless ‘one piece’ style wetsuit is the material. Only a few earth-wise vendors have made the switch to revolutionary Yulex, a renewable, plant-based replacement for neoprene. Working with hevea trees, 99.9% of natural rubber harmful impurities are removed, making it a great alternative for folks with type I latex allergies, too. Delivers the core body warmth and coverage we want without smothering us from earlobes to ankles. From free diving and surfing to kite surfing and kayaking, it’s up for all aquatic activities. Zippered front entry. By Patagonia. 4, 6, 8, 10.
Product 37: Go Natural Wetsuit Jacket
Go Natural Wetsuit Jacket
Ink Black
$129
All the insulating warmth and buoyancy of neoprene we love, born out of nature. Yup, the magic of this soft, stretch sleeveless ‘one piece’ style wetsuit is the material. Only a few earth-wise vendors have made the switch to revolutionary Yulex, a renewable, plant-based replacement for neoprene. Working with hevea trees, 99.9% of natural rubber harmful impurities are removed, making it a great alternative for folks with type I latex allergies, too. Delivers the core body warmth and coverage we want without smothering us from earlobes to ankles. From free diving and surfing to kite surfing and kayaking, it’s up for all aquatic activities. Internal key loop. By Patagonia. 4, 6, 8, 10.
Product 38: Gidget Reversible Bikini Top - Sari
Gidget Reversible Bikini Top - Sari
Vintage Blue
$80
Grab your huaraches and hop into that VW van! It’s back to the future in the Gidget. Surf and sixties-inspired but made of a 21st century blend of sun-busting, UPF certified poly and spandex. Fully reversible pullover stylling. Made in California. By Seea. S(4-6), M(8-10), L(10-12), XL(14).
Product 39: Gidget High Waisted Bikini Bottoms - Sari
Gidget High Waisted Bikini Bottoms - Sari
Vintage Blue
$80
Grab your huaraches and hop into that VW van! It’s back to the future in the Gidget. Surf and sixties-inspired but made of 21st century blend of sun-busting, UPF certified poly and spandex. Fully lined. Made in California. By Seea. S(4-6), M(8-10), L(10-12), XL(14).
Product 40: Barrel Long Sleeve One Piece Swimsuit - Sari
Barrel Long Sleeve One Piece Swimsuit - Sari
Vintage Blue Mixed
$135
Shoot the barrel worry-free. In a sea of barely-theres and bare-it-alls, the Barrel is a full-coverage force to be reckoned with. A wipeout-proof bottom and long sleeve rashguard in one. Also ideal for those of us who rock a barely-there on the beach but need coverage in the water. Ties at neck. By Seea. S(4-6), M(8-10), L(10-12), XL(14).
Product 41: Duck-Diver One Piece Swimsuit - Sari
Duck-Diver One Piece Swimsuit - Sari
Vintage Blue Paisley
$135
Swim that stays put through an onslaught of monster waves or little monsters. Swim that shuts out the sun and shuts in the warm. A dense, not-quite-neoprene fabric keeps us covered and cozy for long hours in the currents. Compressive enough for A’s and B’s to wear alone. Made in California. By Seea. S(4-6), M(8-10), L(10-12), XL(14).
Product 42: Svelte Sunbuster Long Sleeve Top
Svelte Sunbuster Long Sleeve Top
$69
Better than sunscreen. Kills UV rays while waiting for the next big set or perfect for post-session. Silky, wicking poly/spandex soothes and protects sun-weary skin. Shirred seams for a body-hugging fit. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 43: Sunbuster Updated Short Sleeve Pullover - Solid
Sunbuster Updated Short Sleeve Pullover - Solid
Coral Reef
White
Medieval Blue
Tidal
$59
Better than sunscreen. Kills UV rays while waiting for the next big set or perfect for post-session. Quick dry poly/spandex soothes and protects sun-weary skin. Updated center front ¼-zip. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).

Sporty Swimsuits and Athletic Swimwear

All our sunny adventures start with our perfect athletic swimsuits. Whether we're deep sea diving in a supportive bikini or playing hard on the beach in a sporty swimsuit, we expect our active swimwear to keep up with us. At Title Nine, we're redefining women's athletic swimsuits, one swim top and swimsuit bottom at a time. We're active women who need active swimwear, and we know how much the small details matter when it comes to our performance. So when we design our bikini tops, swim bottoms, and one-piece sporty swimsuits, we sweat the small stuff. Whether it's a halter-style tankini top with support for full cups or bikini bottoms with the right amount of coverage, we infuse performance into every stitch to meet all of our swimming needs.

Shop the arrivals of our new swimsuits and athletic swimwear and discover swim suits for every sport and every activity. Want to mix and match bikini tops and swim bottoms? Be our guest. Don't forget to check out our cover-ups and swim skirts, made with fast-drying poly fabrics and easy care performance blends. Perfect for throwing on post-surf session, these athletic swimsuits can seamlessly transition from beach to boardwalk and beyond. Need assistance finding the perfect fit? Chat with us on live chat or call the T9 gals at customer service, and we'll help you find women's athletic swimwear that defies expectations.

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