Alex Marie Swimwear

★★★★★4.8/5· thousands of reviews

Our signature one-piece swimsuit combines timeless elegance with modern shaping technology. The Alex Marie Classic One-Piece features a scooped neckline, medium-coverage back, and built-in shelf bra for all-day support.

Crafted from chlorine-resistant Italian fabric, this suit maintains its shape and color season after season. The flattering princess seams contour to your curves, while the moderate leg cut elongates without riding up. Perfect for poolside lounging or lap swimming, this versatile piece transitions seamlessly from resort wear to athletic performance.

  • Italian LYCRA® XTRA LIFE™ fabric resists chlorine, sun, and lotions
  • Built-in soft-cup shelf bra with removable padding
  • Princess seam shaping through torso for contouring effect
  • Moderate leg cut with stay-put silicone grip tape
  • UPF 50+ sun protection woven into fabric
Italian LYCRA® XTRA LIFE™ fabric resists chlorine, sun, and lotionsBuilt-in soft-cup shelf bra with removable paddingPrincess seam shaping through torso for contouring effectModerate leg cut with stay-put silicone grip tapeUPF 50+ sun protection woven into fabric
Build quality
Everyday use
Value
Durability
Style

Fabric Technology & Construction

Fabric Technology & Construction

Every piece in the Alex Marie swimwear collection starts with premium Italian and European fabrics engineered specifically for swim performance. Our signature material blend combines LYCRA® XTRA LIFE™ spandex with high-tenacity nylon, creating swimsuits that resist degradation from chlorine, salt water, sunscreen, and UV exposure.

The four-way stretch construction moves with your body without losing shape, while the tight knit density provides opacity and coverage even when wet. All alex marie swimwear pieces feature double-layer construction in coverage areas and reinforced stitching at stress points. We use flatlock seams throughout to prevent chafing, and every suit undergoes rigorous quality testing to ensure it maintains its fit and color integrity for at least 200 wears.


Sizing & Fit Guide

Sizing & Fit Guide

Alex Marie swimwear uses body measurements rather than standard dress sizes to ensure the most accurate fit. For one-piece suits and tankini tops, measure your bust at the fullest point, your natural waist, and your hips. Compare these measurements to our size chart available on each product page.

Our bikini tops are available in traditional bra cup sizing (32B through 38DD) for those seeking underwire support, or in standard S-XL sizing for wireless styles. Bottoms run true to size with moderate to full coverage options. If you’re between sizes, we recommend sizing up for the most comfortable fit, especially in our high-waist and full-coverage styles.


Care Instructions for Longevity

Care Instructions for Longevity

Proper care extends the life of your alex marie swimwear significantly. After each wear, rinse your suit in cool, fresh water to remove chlorine, salt, oils, and sunscreen residue. Never wring or twist wet swimwear—instead, press the fabric gently between dry towels to remove excess water.

Machine washing is safe for all our suits on a gentle cycle with cool water and mild detergent. Skip the fabric softener, as it can break down spandex fibers and reduce elasticity. Always air dry your swimwear away from direct sunlight; heat from dryers damages elastic and can cause colors to fade.


Complete Your Swim Wardrobe

Alex Marie Wide-Brim Sun Hat
Alex Marie Wide-Brim Sun Hat
Packable straw hat with UPF 50+ lining and adjustable chin strap for windy beach days
See Sun Hat →
Alex Marie Terry Romper
Alex Marie Terry Romper
Soft terry cloth romper with drawstring waist—effortless poolside style over any suit
Explore Rompers →
Alex Marie Swim Skirt
Alex Marie Swim Skirt
Modest swim skirt with built-in brief and flowy A-line silhouette for confident coverage
View Swim Skirts →
Alex Marie Sport Bikini Bottom
Alex Marie Sport Bikini Bottom
Full-coverage athletic bottom with wide waistband and secure stay-put fit for active wear
See Sport Styles →
Alex Marie Beach Tote
Alex Marie Beach Tote
Water-resistant canvas tote with interior wet pocket and exterior bottle holders
View Alex Marie Beach →
Alex Marie Rash Guard
Alex Marie Rash Guard
Long-sleeve UPF 50+ rash guard with thumbholes and flattering longer length
View Rash Guards →

What people are saying

4.8
★★★★★
Based on verified reviews
Customer product photo
Customer product photo
Customer product photo
Customer product photo
J
Jennifer K.
Verified buyer
★★★★★
Finally, a suit that fits perfectly
I’ve struggled for years to find a one-piece that doesn’t gap at the bust or ride up. The Alex Marie Classic One-Piece fits like it was custom-made for me. The shelf bra provides great support without feeling restrictive, and the fabric quality is noticeably superior to other brands I’ve tried.
M
Maria R.
Verified buyer
★★★★★
Beautiful fabric and excellent construction
I’m impressed by how well this bikini top has held up after a summer of regular pool use. The color hasn’t faded at all, and the underwire still provides the same support as day one. The tie-front design is flattering and allows me to adjust the coverage exactly how I want it.
A
Amy T.
Verified buyer
★★★★★
Love the high-waist style
These bottoms are so comfortable and flattering. The waistband doesn’t dig in, and I love the extra coverage without feeling frumpy. I bought three pairs in different colors to rotate with my bikini tops. They wash beautifully and dry quickly.
R
Rachel B.
Verified buyer
★★★★★
Perfect tankini for active moms
I needed swimwear that would stay in place while chasing toddlers at the pool, and this tankini delivers. The ruching is slimming, the length is modest without being too long, and I can move freely. It’s held up beautifully through constant wear and frequent washing.
S
Susan L.
Verified buyer
★★★★☆
Elegant cover-up, slightly see-through
This mesh tunic is beautiful and breezy—perfect for walking from the pool to the restaurant. Just know that it is semi-sheer as described, so it’s more about style and sun protection than full coverage. The fabric doesn’t wrinkle at all, which makes it ideal for travel.
C
Christina H.
Verified buyer
★★★★★
Best swimsuit investment I’ve made
I typically avoid spending this much on swimwear, but after one season with Alex Marie, I’m convinced it’s worth every penny. The fit is phenomenal, the fabric feels luxurious, and it still looks brand new after dozens of wears. I’ll never go back to cheap suits that lose their shape after a few uses.

Questions About Alex Marie Swimwear

Use your body measurements rather than your typical dress size for the most accurate fit. Measure your bust at the fullest point, your natural waist, and your hips, then compare these measurements to the size chart on each product page.

For bikini tops with underwire support, order your regular bra cup size. If you’re between sizes in one-pieces or bottoms, we recommend sizing up for the most comfortable fit. Remember to consider torso length on one-piece suits—we offer regular and long torso options on select styles.

Yes, all alex marie swimwear is constructed from chlorine-resistant LYCRA® XTRA LIFE™ spandex blended with high-tenacity nylon. This fabric composition is engineered specifically to withstand regular chlorine exposure without losing elasticity or color.

Our suits are tested to maintain their shape and appearance for at least 200 wears in chlorinated water. For maximum longevity, rinse your suit in fresh water after each pool session and follow the care instructions included with your purchase.

Absolutely. Our entire collection is designed for mix-and-match versatility. All bikini tops coordinate with any of our bikini bottoms, swim skirts, or high-waist bottoms. Tankini tops pair beautifully with any bottom style as well.

We maintain a consistent color palette across all styles, so your black bikini top from one season will match black bottoms from another. Many customers build a capsule swim wardrobe by purchasing multiple bottoms to rotate with their favorite tops.

Underwire bikini tops like the Tie-Front style are sized by bra cup size (32B-38DD) and provide structured support similar to an everyday bra. They’re ideal for fuller busts or anyone who prefers defined shaping and lift.

Wireless styles use a built-in shelf bra with removable foam cups and are sized S-XL. They offer comfortable, lighter support perfect for smaller to medium busts or those who prefer a more relaxed fit. Both styles feature adjustable straps and are constructed from the same chlorine-resistant fabric.

Rinse your suit in cool, fresh water immediately after each wear to remove chlorine, salt, oils, and sunscreen. Machine wash on gentle cycle with cool water and mild detergent when needed, avoiding fabric softener which breaks down spandex.

Always air dry away from direct sunlight and never use a dryer, as heat damages elastic fibers. Store suits flat or loosely folded in a cool, dry place. With proper care, your alex marie swimwear will maintain its fit, color, and elasticity for 200+ wears.

Yes, all Alex Marie swimwear fabrics are rated UPF 50+, blocking approximately 98% of UVA and UVB rays. This sun protection is woven into the fiber structure itself, not a topical coating, so it won’t wash away over time.

The covered areas of your body receive excellent sun protection as long as the fabric remains opaque and in good condition. For additional coverage, consider layering our mesh cover-up tunic (UPF 30+) or pairing your suit with our long-sleeve rash guard (UPF 50+).

We accept returns of unworn, unwashed swimwear with original tags attached within 60 days of purchase for a full refund or exchange. Suits must be tried on over undergarments with the hygiene liner intact.

All Alex Marie swimwear includes a quality guarantee covering manufacturing defects such as seam failure, elastic breakdown, or fabric flaws under normal use conditions. If you experience any quality issues, contact our customer service team for a replacement or refund.

Build Your Perfect Swim Wardrobe
Mix, match, and discover your favorite Alex Marie styles