Casual Bikinis

Sunshine and good vibes await, babe! Whether you're lounging by the pool or hitting the beach with your squad, our collection of casual bikinis is here to make sure you steal the spotlight. Dive into a world where comfort meets style, and every wave is an opportunity to flaunt your effortless chic. From flirty florals to bold solids, these casual bikinis are ready to ride the tide with you, all while keeping your look fresh and fabulous. So grab your sunnies and let’s make a splash—because you were born to turn heads!

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$22.90

5 star rating

A black floral bikini bottom featuring a V-shaped low-rise waist and scrunched thong back in stretchy knit.

$24.90

A stylish brown triangle bikini top with O-ring insets and a flirty knotted bust.

$22.90

A slate nylon-blend bikini bottom featuring a V-cut waist, scrunched back detail, and thong fit.

$22.90

1 star rating

A snake print bikini bottom with side ties and cheeky coverage for a stylish beach look.

$24.90

A slate nylon-blend bikini top featuring triangle cups, removable padding, and customizable dual spaghetti strap ties.

$24.90

1 star rating

A brown one-shoulder bikini top with a metallic sheen and sweetheart padded bust.

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Sweet Sun Floral Tie-Front Bikini Top
(2) 5 star rating

Enjoy the sweet sunshine at the pool or beach in this floral tie-front bikini top! Pair with the matching bikini bottoms. Fit & FeaturesFloral print, knit lined fabric, Short puff sleeves, Tie-front design, Ruffled trim, Runs true to size, Shop The Matching Bikini Bottoms: Sweet Sun Floral Bikini Bottoms Free Shipping on All Orders Over $75. | Windsor Sweet Sun Floral Tie-Front Bikini Top | Size: M | Knit Fabric

Windsor Poolside Flirt String Bikini Top in White
(1) 5 star rating

Sit flirty and pretty in this eyelet string bikini top at a pool party or on vacation! Pair with the matching bikini bottoms. Fit & FeaturesEyelet lined fabric, Triangle cups, Dual string spaghetti back ties, Runs true to size , Shop The Matching Bikini Bottoms: Poolside Flirt Eyelet String Bikini Bottoms Free Shipping on All Orders Over $75. | Windsor Poolside Flirt String Bikini Top in White | Size: M

Windsor Poolside Paradise Floral Triangle Bikini Top in Black
(1) 5 star rating

So pretty and made for tanning, this floral bikini top offers flattering triangle-shaped cups and dual spaghetti strap ties that let you customize the style! Pair with the matching bikini bottoms. Shop Matching Bottoms: Poolside Paradise Floral Scrunch Bikini BottomsFit & FeaturesFloral print, stretchy knit fabric, V-shaped low-rise waist, Scrunched thong back coverage, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Poolside Paradise Floral Triangle Bikini Top in Black | Size: L | Knit Fabric

Heat Wave Halter Bandeau Bikini Top in Green
(1) 5 star rating

Bring the heat to your summer vacay in this bandeau bikini top featuring a metal rectangular accent and halter tie-back straps. Pair with the matching bikini bottoms. Shop Matching Bottoms: Heat Wave V-Cut Bikini BottomsFit & FeaturesNylon-blend fabric, high stretch, Sweetheart bust, Metal rectangular accent, Halter tie-back spaghetti straps, Lower tie-back straps, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Heat Wave Halter Bandeau Bikini Top in Green | Size: M | Nylon

Beachy Bombshell Bikini Top in Brown

Beachy bombshell will be your vibe in this sweetheart bikini top designed with lurex knit fabric for a trendy metallic sheen. Pair with the matching bikini bottoms and sarong for a sun-kissed look! Shop Matching Set: Beachy Bombshell One-Shoulder Bikini Top, Beachy Bombshell V-Cut Bikini Bottoms, Beachy Bombshell Short SarongFit & FeaturesLurex knit fabric, metallic sheen, Structured sweetheart bust with underwire, padded bra cups, Adjustable spaghetti straps, Back hook and bar closure, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Beachy Bombshell Bikini Top in Brown | Size: L | Knit Fabric

Windsor Flirty Babe Gingham Print Bandeau Bikini Top in Red

Channel that flirty babe style in this adorable gingham printed bandeau bikini top with a ruffled trim. Pair with the matching bikini bottoms for a sweet and sassy look. Shop Matching Bottoms: Flirty Babe Gingham Print Side Tie Bikini BottomsFit & FeaturesNylon-blend fabric, high stretch, Gingham print, Strapless neckline, Center bust cutout, tie-front detail, Ruffled trim, Thin strappy back design, hook and bar closure, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Flirty Babe Gingham Print Bandeau Bikini Top in Red | Size: M | Nylon

Windsor Soak Up The Rays O-Ring Bikini Top in Brown

Get ready to soak up the rays in this triangle bikini top with O-ring insets and a flirty knotted bust. Pair with the matching bikini bottoms. Fit & FeaturesLined knit fabric, Knotted bust, removable padded bra cups, Spaghetti straps, Back hook closure, O-ring insets, Runs true to size, Shop The Matching Bikini Bottoms: Soak Up The Rays O-Ring Bikini Bottoms Free Shipping on All Orders Over $75. | Windsor Soak Up The Rays O-Ring Bikini Top in Brown | Size: S | Knit Fabric

Windsor Beachy Bombshell One-Shoulder Bikini Top in Brown
(2) 1 star rating

Beachy bombshell will be your vibe in this one-shoulder bikini top designed with lurex knit fabric for a trendy metallic sheen. Pair with the matching bikini bottoms and sarong for a sun-kissed look! Shop Matching Set: Beachy Bombshell Bikini Top, Beachy Bombshell V-Cut Bikini Bottoms, Beachy Bombshell Short SarongFit & FeaturesLurex knit fabric, metallic sheen, One-shoulder asymmetric strap, Sweetheart padded bust with ruching, removable padded bra cups, Back hook and bar closure, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Beachy Bombshell One-Shoulder Bikini Top in Brown | Size: S | Knit Fabric

Gone Coastal Snake Triangle Bikini Top

If you're heading on vacay or the beach, this snake triangle bikini top will keep you fiercely stylish on and off the shore! Pair with the matching bikini bottoms. Fit & FeaturesSnake print, lined fabric, Triangle cups, removable padded bra cups, Adjustable spaghetti straps, Back spaghetti strap tie, Runs true to size, Shop The Matching Bikini Bottoms: Gone Coastal Snake Side Tie Bikini Bottoms Free Shipping on All Orders Over $75. | Windsor Gone Coastal Snake Triangle Bikini Top | Size: S

Hello Summer Triangle Bikini Top in Red

Say hello to summer in this trendy bikini top featuring triangle-shaped cups with removable padding and dual spaghetti strap ties that let you customize the style. Pair with the matching bikini bottoms for a pool party. Shop Matching Bottoms: Hello Summer V-Cut Bikini BottomsFit & FeaturesNylon-blend fabric, high stretch, Triangle design, Removable padding, Dual tie-back halter straps, Lower tie-back straps, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Hello Summer Triangle Bikini Top in Red | Size: M | Nylon

Casual Bikinis

When it comes to curating the ultimate wardrobe for poolside hangs, spontaneous beach days, or that last-minute invite to a backyard bash, nothing hits quite like casual bikinis. These aren’t just swimwear—they’re your ticket to living your best life, one sun-drenched selfie at a time. Think effortless style that doesn’t try too hard, but always lands you compliments from strangers and besties alike. The beauty of casual bikinis is all about versatility and comfort—styles that move with you, whether you’re perfecting your cannonball, catching rays on a floatie, or racing your crew to the snack shack. They’re perfect for the girl who wants to look cute without looking like she spent hours planning her fit, and for the friend who’s always down for a dip, even if it’s just in the neighbor’s inflatable pool. If you’re hunting for a gift that screams “you’re the life of the party,” or just want to treat yourself because, duh, you deserve it, a casual bikini is the move. It’s the kind of present that says, “I see you, I love your vibe, now go make some memories.”

Shopping for a casual bikini is all about finding that sweet spot between laid-back and totally iconic. You want pieces that feel as good as they look—think buttery-soft fabrics, adjustable straps for that just-right fit, and silhouettes that have your back (and your confidence). For the Windsor girl, it’s about showing off your personality, whether you’re into bold prints, flirty details, or classic solids that go with literally everything. Don’t sleep on the importance of quality, either. A Windsor bikini is designed to keep up with all your adventures, from sunrise swims to golden hour hangs. Look for thoughtful touches like secure closures, supportive tops, and bottoms that stay put no matter how wild the water gets. And if you’re the friend who always brings the fun, why not mix and match? Pair a punchy top with a chill bottom and watch your group chat blow up with outfit inspo requests. No matter your vibe, these are the suits you’ll reach for on repeat, whether you’re living it up at a rooftop pool or just catching rays on your balcony. For even more inspo and tips on finding your next ride-or-die suit, check out our handpicked collection of Quality Bikinis—because you deserve swimwear that’s as fearless and fun as you are.

Top Picks For Casual Bikinis