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: Pele Tankini Top - Solid
Pele Tankini Top - 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 1: Lehua Bikini Bottom - Solid
Lehua Bikini 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 2: Pele Bikini Top - Solid
Pele Bikini Top - 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 3: 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 4: Siren Bikini Top - Willow Mix
Siren Bikini Top - Willow Mix
Black Willow Dot
$59
The wisdom of decades of swim design all packed into one suit. When fresh sets are calling our name, we pull on the Siren. Stays put through wipeouts and duck dives alike. Pullover. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 5: Siren Tankini Top - Willow Mix
Siren Tankini Top - Willow Mix
Black Willow Dot
$69
The wisdom of decades of swim design all packed into one suit. When fresh sets are calling our name, we pull on the Siren. Stays put through wipeouts and duck dives alike. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 6: Zenith Long Sleeve One Piece Swimsuit - Willow Mix
Zenith Long Sleeve One Piece Swimsuit - Willow Mix
Black Willow Dot
$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 7: Lehua Bikini Bottom - Willow Mix
Lehua Bikini Bottom - Willow Mix
Black Willow 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(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 8: Aquatic Life Sun Shirt - Willow
Aquatic Life Sun Shirt - Willow
Black Dot
$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 9: Woman Up Tankini Top - Flower Mix
Woman Up Tankini Top - Flower Mix
Blueberry
$85
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 10: Woman Up Bikini Top - Flower Mix
Woman Up Bikini Top - Flower Mix
Blueberry
$75
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: Lehua Bikini Bottom - Flower Mix
Lehua Bikini Bottom - Flower Mix
Blueberry
$55
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 12: Woman Up One Piece Swimsuit - Flower Mix
Woman Up One Piece Swimsuit - Flower Mix
Blueberry
$109
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: Better 2.0 Bikini Top - Linen Stripes
Better 2.0 Bikini Top - Linen Stripes
Multi Stripe
$59
Better because it adjusts for a custom fit. Better because this suit 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 keep growing in the evolution of bikinis, so meet the Better 2.0 Bikini. 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 14: Better 2.0 Tankini Top - Linen Stripes
Better 2.0 Tankini Top - Linen Stripes
Multi Stripe
$69
Better because it adjusts for a custom fit. Better because this suit 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 keep growing in the evolution of bikini bikinis, so meet the Better 2.0 Tankini. 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 15: Lehua Bikini Bottom - Linen Stripes
Lehua Bikini Bottom - Linen Stripes
Multi Stripe
$52
A swim bottom that makes aquatic adventures possible. Fully lined. By Title Nine. XS(0-2), S(4-6), M(8-10), L(10-12), XL(12-14).
Product 16: 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 17: Wahine Swim Shorts
Wahine Swim Shorts
Black
Blueberry
Adriatic Blue
Loganberry
$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 18: 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 19: Holy Grail Swimsuit Bottom - Solid
Holy Grail Swimsuit Bottom - Solid
$49
Aptly named, this low rise bikini bottom is 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 20: Lanuza Bikini Top B/C Cup - Paradise
Lanuza Bikini Top B/C Cup - Paradise
Paradise
$64
Riding big swells along the typhoon belt and world class-level wipeouts alike, the Lanuza can’t miss. A modern take on the classic pullover racerback. By Carve Designs. XS(2-4), S(6), M(8-10), L(10-12), XL(14).
Product 21: Lanuza Bikini Top D/DD Cup - Paradise
Lanuza Bikini Top D/DD Cup - Paradise
Paradise
$64
Riding big swells along the typhoon belt and world class-level wipeouts alike, the Lanuza can’t miss. A modern take on the classic pullover racerback. By Carve Designs. S(6), M(8-10), L(10-12).
Product 22: Tidal Bikini Bottom - Paradise
Tidal Bikini Bottom - Paradise
Paradise
$42
When the water or the action is fast moving, we pull on the Tidal. Fully lined. By Carve Designs. XS(2-4), S(6), M(8-10), L(10-12), XL(14).
Product 23: Dive Tank One Piece Swimsuit - Paradise
Dive Tank One Piece Swimsuit - Paradise
Paradise
$96
The essential swimsuit when it’s time for all types of aquatic adventure. Up for quick dips and long descents alike. Classic scoopback styling with a high neckline. Crossover straps for sport stability. By Carve Designs. XS(2-4), S(6), M(8-10), L(10-12), XL(14).
Product 24: 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), S(4-6), M(8-10), L(12-14), XL(16).
Product 25: 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 26: Sunbuster 2.0 Full Zip Hoodie Sun Shirt
Sunbuster 2.0 Full Zip Hoodie Sun Shirt
White
Adriatic Blue
Aqua Green
Calypso Coral
$75
Better than sunscreen. Kills UV rays while waiting for the next big set or perfect for post-session. Our new sun shirt fabric is densely knit to keep us cool and deliver UPF 50, still dries faster than traditional sunshirts, and is infused with StinkStopper™ to boot. All that means we can truly comfortably play all day, no matter what the conditiions. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 27: Sunbuster 2.0 Long Sleeve Sun Shirt
Sunbuster 2.0 Long Sleeve Sun Shirt
White
Adriatic Blue
Aqua Green
$65
Better than sunscreen. Kills UV rays while waiting for the next big set or perfect for post-session. Our new sun shirt fabric is densely knit to keep us cool and deliver UPF 50, still dries faster than traditional sunshirts, and is infused with StinkStopper™ to boot. All that means we can truly comfortably play all day, no matter what the conditiions. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 28: Gravi-D Bikini Top - Wabi Stripe
Gravi-D Bikini Top - Wabi Stripe
Atlantic Stripe
$70
An aerospace engineer somewhere must’ve changed careers because this swimsuit makes D cups feel like they’re defying gravity. Two-in-one support styling kept sleeky under wraps: beneath the wrap-front exterior is a floating, powermesh, underwire bra. Pullover, strappy x-back styling. By Prana. 32, 34, 36, 38, 40.
Product 29: Gravi-D Tankini Top - Wabi Stripe
Gravi-D Tankini Top - Wabi Stripe
Atlantic Stripe
$85
An aerospace engineer somewhere must’ve changed careers because this swimsuit makes D cups feel like they’re defying gravity. Two-in-one support styling kept sleeky under wraps: beneath the wrap-front exterior is a floating, powermesh, underwire bra. By Prana. 32, 34, 36, 38, 40.
Product 30: Rumba Bikini Bottom - Wabi Stripe
Rumba Bikini Bottom - Wabi Stripe
Atlantic Stripe
$50
Ready for an aquatic rumble? The Rumba Bikini Bottom delivers mid rise, medium coverage, max aquatic fun. Fully lined. By Prana. XS(0-2), S(4-6), M(8-10), L(12-14), XL(16).
Product 31: Block Out Long Sleeve Rash Guard - Sand Dunes Dot
Block Out Long Sleeve Rash Guard - Sand Dunes Dot
Mixed Blues
$75
When the sun’s rays are making threats, the Block Out silences them in a snap. Wipeout-proof sun protection that shields us from sunburn and boardrash alike with a less compressive, more forgiving fit versus traditional rash guards. By Title Nine. S(4-6), M(8-10), L(12-14), XL(16).
Product 32: Streamline Bikini Top - Sand Dunes
Streamline Bikini Top - Sand Dunes
Mixed Blues
$65
Sleek, streamlined, and downright powerful. No sacrifices here, the Streamline delivers on both sass and strength. It’s strappy but still supportive and adjustable without all the annoying tying…and re-tying. Converts to x-back via j-hook. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 33: Lehua Bikini Bottom - Sand Dunes
Lehua Bikini Bottom - Sand Dunes
Mixed Blues
$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 34: H2Go Bikini Top
H2Go Bikini Top
Nvy/yel/lt
$53
For life in and out and in and out and in and out of the water. More compressive than traditional swim fabric, accented with fast-drying mesh in all the right places. H2O to street-ready “whoa!” that’s always ready to go. Doubles as a sports bra or crop in a pinch. Adjust strap and band length with a quick pull-and-tie. Pullover. By Carve Designs. XS(2-4), S(6), M(8-10), L(10-12), XL(14).
Product 35: H2Go Swim Shorts
H2Go Swim Shorts
Nvy/yel/lt
$64
For life in and out and in and out and in and out of the water. More compressive than traditional swim fabric, accented with fast-drying, quick-draining mesh pockets. H2O to street-ready “whoa!” that’s always ready to go. By Carve Designs. XS(2-4), S(6), M(8-10), L(10-12), XL(14).
Product 36: H2Go One Piece Swimsuit
H2Go One Piece Swimsuit
Nvy/yel/lt
$92
For life in and out and in and out and in and out of the water. More compressive than traditional swim fabric, accented with fast-drying mesh in all the right places. H2O to street-ready “whoa!” that’s always ready to go. Doubles as workout-ready bodysuit in a pinch—we won’t tell! By Carve Designs. XS(2-4), S(6), M(8-10), L(10-12), XL(14).
Product 37: Double Up Tankini Top - Haiku
Double Up Tankini Top - Haiku
Navy Haiku
$84
Coverage right where we want it, thank you very much. The magic is in the double layer: bikini under layer with a swim-ready, tank outer. Cross-back styling. By Carve Designs. XS(2-4), S(6), M(8-10), L(12), XL(14).
Product 38: Bermuda Bikini Top - Haiku
Bermuda Bikini Top - Haiku
Navy Haiku
$48
There’s some sneaky magic in these triangles. The Bermuda delivers the custom fit and support of a halter, but without the neck pain: one quick pull adjusts our straps and band, giving a racerback feel. Pullover, x-back styling. Fully lined. By Carve Designs. XS(2-4), S(6), M(8-10), L(10-12), XL(14).
Product 39: Tidal Reversible Bikini Bottom - Haiku/Stripe
Tidal Reversible Bikini Bottom - Haiku/Stripe
Navy Haiku/stripe
$56
When the water or the action is fast-moving, we pull on the Tidal. Fully lined. By Carve Designs. XS(2-4), S(6), M(8-10), L(10-12), XL(14).
Product 40: Endless Summer Short Sleeve Rash Guard
Endless Summer Short Sleeve Rash Guard
Navy/daisy
Moss Makai
$52
Paddle-ready protection that stands up to the sun, keeping us comfortably covered in every venture. Adjustable, side ruching allows for custom length. 1/2 zip. By Carve Designs. S(4-6), M(8-10), L(12), XL(14).
Product 41: Surf Rock Board Shorts - Solid
Surf Rock Board Shorts - Solid
Adriatic Blue
Agave
Medieval Blue
$54
Catch us surfin’ at Del Mar, Ventura County line, Santa Cruz and Trestle, Australia’s Narabine... When everybody’s goin’ surfing these are the classically baggy boardshorts we pull on to paddle out. 1960s style meets modern performance: when we’re done with our set, they dry out in a snap and are ready to hit the boardwalk. Relaxed fit. By Carve Designs. XS(2-4), S(6), M(8-10), L(10-12), XL(14).
Product 42: 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 43: Sunbuster 1/4 Zip Pullover - Waimea
Sunbuster 1/4 Zip Pullover - Waimea
Agave
Loganberry
Medieval Blue
$69
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. Center front 1/4-zip. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).
Product 44: Sunbuster Long Sleeve Hoodie - Kiyomi
Sunbuster Long Sleeve Hoodie - Kiyomi
White
Aqua Green
Regatta Blue
$79
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 adjustable cinch hem. 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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