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Best One-Piece Swimsuit for Eco-Conscious Style
Away That Day Cannes One Piece in Black/Ivory PYRATEX®
This one-piece swimsits for women is made with ultra-soft PYRATEX® Active 1, innovated with biodegradable elastane. It features a balconette aesthetic and an exclusive two-tone colourway, boasting a timeless look with medium coverage at the back. Complete with fully adjustable straps and a high-cut leg, perfected to wear as a swimsuit or bodysuit. The oversized shoulder straps sit perfectly to accentuate your décolletage while the signature U wire center-front detail adds that couture touch. The Cannes black one piece bathing suit screams '90s nostalgia with a modern sustainable twist.
Material Used: PYRATEX® Active 1 with biodegradable elastane – a revolutionary eco-friendly fabric that's ultra-soft and offers excellent stretch recovery.
Why Choose This: Perfect for the environmentally conscious babe who refuses to compromise on style. The balconette cut is incredibly flattering for smaller busts, while the adjustable straps ensure a custom fit.
Care: Gentle hand wash only. Wash dark and light colours separately. Avoid wringing your swimsuit when wet. To dry, lay swimwear flat on a towel out of direct sunlight. Never tumble dry.
Best One-Piece Swimsuit for Luxury Statement
MOEVA Honora Black Cut-Out Swimsuit with Gold Accessory
The strategically placed torso-baring cut-out of the Honora black one-piece extends to the back. The high-neck one-piece swimsuit with removable paddings is edgy but extremely minimalistic in its design. The cut-out element adds a bit of spice to the conventional high-neck cut. This black bathing suit features a crushed round gold accessory that holds the two halves together, creating an incredibly striking silhouette.
Material Used: Italian fabric with Special Lycra Xtralife certificate, composed of 72% Polyamide – premium Italian fabric known for superior fit and durability.
Why Choose This: When you want to make a serious style statement. The gold hardware elevates this from basic to bougie, and it doubles as the perfect bodysuit for evening looks.
Care: Rinse in cold water after wear, hand wash with mild detergent, and lay flat to dry away from direct sunlight to preserve the Italian fabric quality.
Best One-Piece Swimsuit for Brazilian Glamour
ViX Paula Hermanny Firenze Candice Elisa One-Piece Black
The ViX Firenze collection features beautiful swimsuits made from exclusive crinkled lycra with sophisticated silhouettes that embody effortless Brazilian beach chic. The Candice Elisa design delivers that authentic Brazilian swimwear experience with its elegant cut and premium construction. This one-piece swimwear represents the pinnacle of South American beach luxury with its artisanal craftsmanship.
Material Used: Exclusive crinkled lycra material chosen for its uniqueness, elegance, quality, and subtle style – a signature ViX fabric that adds character and texture.
Why Choose This: Perfect for the woman who appreciates artisanal details and wants that authentic Brazilian swimwear experience. The crinkled texture photographs beautifully and feels luxurious against the skin.
Care: Rinse your swimsuit in cool water after swimming in salt or chlorinated water. Hand wash your swimsuit with mild soap to prolong its life – do not machine wash. All embellishments are safe to wear in salt and chlorinated water.
Best One-Piece Swimsuit for Instagram-Ready Moments
Oh Polly Maranta Halterneck Cut-Out Swimsuit in Black
Made for tropical trips, the Maranta swimsuit is crafted from premium stretch-jersey swim fabric and cut to a classic high-leg silhouette for a universally flattering fit. The high-cut leg elongates your silhouette while the cut-out details add that perfect amount of edge for your feed.
Material Used: Premium stretch-jersey swim fabric with superior elasticity and shape retention – designed to move with your body and maintain its form.
Why Choose This: When you need that picture-perfect moment. The cut-outs create interesting shadows and lines that photograph incredibly well, plus the fit is consistently flattering across different body types.
Care: Machine wash at 30 degrees with similar colors. Do not bleach, iron, or tumble dry. Reshape while damp and dry flat to maintain the cut-out structure.
Best One-Piece Swimsuit for California Cool
Montce Charcoal Ky One-Piece
The Charcoal Ky One-Piece features a flattering scoop neckline, strategic cut-outs, and faux tortoise shell hardware with medium support and comfortable thick straps. The ruched back accentuates the booty while the high cut style elongates the leg. This classic black one piece swimsuit embodies that effortless California beach aesthetic with its sophisticated charcoal hue and thoughtful design details.
Material Used: Buttery soft ribbed material with extra stretch knit rib that fits amazing on the body, made from Nylon/Spandex blend with fabric imported from Brazil – premium materials that feel incredibly soft and provide excellent stretch.
Why Choose This: Perfect for the girl who wants that coveted Cali-cool vibe. The ribbed texture adds visual interest while the tortoiseshell hardware provides a subtle luxury detail.
Care: Hand wash in cool water and lay flat to dry to maintain the ribbed texture and hardware quality.
Best One-Piece Swimsuit for Effortless Sophistication
Runaway The Label Mykonos One-Piece Black
This black swimsuit captures that effortless Mediterranean elegance with its clean lines and sophisticated silhouette. The Mykonos design embodies that Greek island chic with its minimalist approach and premium construction. Perfect for the woman who appreciates understated luxury and timeless design, this one-piece bathing suit transitions seamlessly from beach to beachside café.
Material Used: Premium swim fabric blend with optimal stretch and shape retention, designed for both comfort and durability in marine environments.
Why Choose This: When you want that effortless European elegance. The minimalist design is incredibly versatile and the quality construction ensures it will last season after season.
Care: Rinse in fresh water after use, hand wash with mild soap, and lay flat in shade to dry while maintaining the sleek silhouette.
Best One-Piece Swimsuit for Timeless Elegance
Marysia Mott Maillot in Black/Indigo
The Mott Maillot is our staple halter one-piece, with a plunging back. The high neck provides flattering coverage and support, with added side darts to give this silhouette a sleek appearance. This black one piece swimsuit features Marysia's signature scalloped edges that create the most beautiful, feminine silhouette. The black/indigo colorway adds depth while maintaining that classic sophistication that Marysia is famous for.
Material Used: 88% Polyamide, 12% Elastane in Italian fabric with a basketweave texture that offers great stretch and recovery – premium Italian materials with quick-drying properties.
Why Choose This: When you want investment-level quality with artisanal details. The hand-cut scallops are a signature Marysia touch that elevates this beyond typical swimwear.
Care: Hand wash and lay flat to dry to preserve the scalloped edges and Italian fabric quality.
Best One-Piece Swimsuit for Modern Minimalism
Calzedonia Black & White Monochrome One-Piece
This black one piece bathing suit offers the perfect blend of sporty functionality and sleek design with its striking monochrome pattern. The graphic black and white design creates a bold statement that's both classic and contemporary.
Material Used: High-performance polyamide blend with excellent chlorine resistance and shape retention – designed for active wear and regular pool use.
Why Choose This: When you need a swimsuit that performs as well as it looks. The supportive construction and striking design make it versatile for both athletic activities and fashion moments.
Care: Machine washable on gentle cycle, rinse immediately after chlorine exposure, and air dry to maintain elasticity and color contrast.
Best One-Piece Swimsuit for Architectural Edge
Ark Swimwear Black Zip One-Piece
This black one piece swimsuit epitomizes modern minimalism with its sleek zip-front design and clean architectural lines. The innovative zip detail creates a striking vertical focal point while the streamlined silhouette hugs your curves in all the right places. Perfect for the woman who appreciates cutting-edge design and contemporary aesthetics, this sexy one piece swimsuit makes a bold statement without saying a word.
Material Used: Premium Italian jersey with excellent stretch and recovery properties – smooth finish that feels luxurious against the skin with superior durability.
Why Choose This: When you want something completely different from typical swimsuit silhouettes. The zip front is both functional and fashion-forward, creating a unique focal point that photographs beautifully.
Care: Hand wash in cool water, zip up before washing to protect the zipper mechanism, and lay flat to dry to maintain the sleek architectural silhouette.
Best One-Piece Swimsuit for Versatile Elegance
The Bikini Dolls Lana One-Piece in Noir
This classic Lana black one piece swimsuit offers timeless appeal with modern construction and sophisticated noir coloring. The sleek silhouette flatters every body type while the quality construction ensures it holds up to regular wear and washing. This one piece swimsuits for women design embodies that effortless elegance that never goes out of style.
Material Used: Premium swim fabric blend with optimal stretch and recovery, featuring colorfast technology to maintain the deep noir shade – designed for comfort and longevity.
Why Choose This: Perfect for the woman who wants reliable style without fuss. This piece transitions seamlessly from beach to poolside to casual lunch with equal sophistication.
Care: Machine wash on delicate cycle with like colors, avoid fabric softeners, and air dry to maintain shape and rich color integrity.
Best One-Piece Swimsuit for Athletic Luxury
Slate Swim Phoenix One-Piece Black
This sexy black one piece bathing suit combines athletic functionality with luxury aesthetics, featuring a sleek silhouette that's perfect for both swimming laps and striking poses. The Phoenix design embodies strength and elegance with its sophisticated construction and performance-oriented fit. The streamlined black finish creates a powerful look that's both commanding and feminine. This one-piece swimwear proves that athletic wear can be incredibly chic and fashion-forward.
Material Used: High-performance technical fabric blend with chlorine resistance, UV protection, and superior stretch recovery – engineered for both performance and style.
Why Choose This: When you need a swimsuit that keeps up with your active lifestyle without compromising on style. The athletic-inspired design is incredibly flattering and functional.
Care: Rinse immediately after use, avoid fabric softener, and air dry to maintain technical fabric properties.
Best One-Piece Swimsuit for Sophisticated Neutrals
Monday Swimwear Clovelly One-Piece Espresso/Ivory
While technically featuring espresso tones, this black swimsuit alternative offers sophisticated neutral coloring that pairs beautifully with the ivory accents. The Clovelly design embodies that effortless Australian beach aesthetic with its relaxed yet refined silhouette. This one-piece bathing suit captures that perfect balance between casual and chic that Monday Swimwear is known for. The color combination creates visual interest while maintaining the versatility of darker tones.
Material Used: Premium Australian-designed swim fabric with excellent stretch and recovery, featuring fade-resistant technology for long-lasting color – crafted for durability in harsh sun conditions.
Why Choose This: Perfect for the woman who wants something slightly different from pure black while maintaining sophistication. The neutral tones are incredibly versatile and the Australian quality is unmatched.
Care: Hand wash in cold water, avoid harsh detergents, and dry flat in shade to preserve the espresso and ivory color combination.
Best One-Piece Swimsuit for Miami Vibes
Riot Swim Biscayne One-Piece Black
Named after Miami's iconic Biscayne Bay, this sexy one piece swimsuit captures that sultry South Beach energy with its figure-hugging silhouette and confident design. The sleek black finish creates a mysterious allure while the thoughtful construction ensures a flattering fit for every body type. The Riot Swim Biscayne embodies that Miami glamour with its sophisticated edge and premium quality.
Material Used: Premium stretch swim fabric designed for tropical climates with superior UV protection and quick-dry properties – built to withstand sun, salt, and chlorine.
Why Choose This: When you want to channel that Miami glamour and confidence. The design is both sophisticated and sultry, perfect for making an impression.
Care: Rinse after each use, hand wash with gentle detergent, and air dry away from direct sunlight to maintain color and elasticity.
Best One-Piece Swimsuit for Sultry Sophistication
Bluebella Orta Plunge Swimsuit Black
The Bluebella Orta Plunge bathing suit features a dramatic plunging neckline that creates an incredibly alluring silhouette while maintaining elegance and sophistication. The Orta design embodies British luxury with its attention to detail and premium construction. The deep plunge creates a striking focal point while the sleek black finish adds an air of mystery and allure. This one piece swimsuits for women is perfect for the confident woman who isn't afraid to make a statement.
Material Used: Premium European swim fabric with excellent stretch and support properties, featuring reinforced construction around the plunge neckline for security and comfort.
Why Choose This: When you want to embrace your sensual side while maintaining sophistication. The plunging design is incredibly flattering and the quality construction ensures confidence with every wear.
Care: Hand wash gently to protect the plunge construction, use cool water, and lay flat to dry to maintain the dramatic silhouette.
Best One-Piece Swimsuit for Contemporary Chic
MBM Swim Ethos Black
The Ethos design embodies the philosophy of timeless style meeting contemporary functionality. This black one piece swimsuit features clean lines and modern construction that creates a sophisticated silhouette perfect for the modern woman. The minimalist approach allows the quality and cut to speak for themselves, while the rich black color provides endless versatility. This one-piece swimwear represents the essence of contemporary swim design with its focus on fit, function, and understated luxury.
Material Used: Technical swim fabric blend with optimal compression and stretch recovery, designed for both comfort and performance with long-lasting color retention.
Why Choose This: Perfect for the woman who appreciates quality over flashy details. The contemporary design is timeless and the construction is built to last.
Care: Machine wash on delicate cycle, avoid bleach and fabric softeners, and air dry to preserve the technical fabric properties and sleek silhouette.
Final Thoughts: Your Perfect Black One-Piece Awaits
These 15 carefully curated one piece swimsuits for women represent the very best of 2025's offerings, each bringing something unique to the table while maintaining that timeless black swimsuit sophistication we all love. From eco-conscious materials to luxury Italian fabrics, from Instagram-ready cut-outs to timeless elegant silhouettes, this collection covers every possible style preference and occasion.
Each of these black swimsuits has been chosen for its unique contribution to the world of swim fashion, ensuring that every woman can find her perfect match in this comprehensive collection.
