10 Best Fina Approved Arena Ladies Open Water Swimwear in The UK

Last updated on 12/08/2025
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Best Choice
1
9.8
Exceptional
ARENA Aurora Caimano Special Edition Women's Open Back Powerskin Carbon Air One Piece Competition Racing Kneeskin Swimsuit for Pool, Fina Approved
ARENA
ARENA Aurora Caimano Special Edition Women's Open Back Powerskin Carbon Air One Piece Competition Racing Kneeskin Swimsuit for Pool, Fina Approved
Main Highlights
  • LIGHT-AS-AIR FEEL - The Powerskin Carbon Air2's innovative Carbon Band material and seamless design provide a second-skin comfort, reducing pressure on hips for an unmatched aquatic experience
  • EASY ON/OFF ACCESS - Unlike other racing suits, the single-piece construction of the Carbon Air2 ensures effortless wear and removal, saving you time and hassle before and after your swim
  • TARGETED MUSCLE SUPPORT - Carbon Band technology offers horizontal compression, supporting key muscles while maintaining flexibility and comfort, enhancing your performance in the water
  • STUNNING AURORA DESIGN - The trendy caiman design in mesmerizing aurora borealis colors not only makes a statement but also ensures you look as good as you perform in the water
  • ENHANCED MOBILITY - With a three-panel internal lining, this suit minimizes chest compression, allowing greater upper body mobility for powerful strokes, while the closed-back design ensures a secure, locked-in feel
9.8
Exceptional
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Best Value
2
9.6
Superb
Arena Powerskin Carbon Ultra Women's Open Back Racing Swimsuit
Arena
Arena Powerskin Carbon Ultra Women's Open Back Racing Swimsuit
Why We Love It
  • Intelligent compression for performance.
  • Enhanced body position control.
  • Targeted muscle support and efficiency.
Main Highlights
  • Carbon ultra-cage (outside) - high density carbon cage for more intelligent compression
  • Infinity loop with x-pivot point (inside) - for perfect body position, body rotation control and stroke efficiency
  • Ultra-compression panels (inside) - for extra muscle support and targeted compression, where needed
  • 50% Polyamide 47% Elastane 3% Carbon Fiber
9.6
Superb
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3
9.5
Superb
Arena Powerskin ST Next One Piece Women's Swimsuit, FINA Approved Tech Suit, Women's Recycled Fabric Swimsuit, Women's Lined One Piece Swimsuit with Reinforced Shoulder Straps Blue
Arena
Arena Powerskin ST Next One Piece Women's Swimsuit, FINA Approved Tech Suit, Women's Recycled Fabric Swimsuit, Women's Lined One Piece Swimsuit with Reinforced Shoulder Straps Blue
Why We Love It
  • FINA approved for competitions.
  • Made from recycled fabric.
  • Lightweight with excellent performance.
Main Highlights
  • FINA/WORLD AQUATICS APPROVED: ST Next is the trailblazing FINA-approved women's tech suit that contains 60+ percent recycled fabric; its design ensures greater lightness, strength and speed during any swimming competition
  • RECYCLED FABRIC: 60+% of this women's competition swimsuit was created with fabric from recycled materials; in fact, it is composed of 71% polyamide, 29% elastane (recycled fabric: 65% of the polyamide is recycled)
  • PERFORMANCE: The modern ST Next women's arena swimsuit is significantly lighter than the previous ST 2.0 version, which results in less water absorption and drag; in addition, the increased support and compression on the abdomen and legs help for a powerful swim and a hydrodynamic posture
  • GOOD FIT: Ergonomic design with flatlock seams ensures an optimal fit and freedom of movement; in addition, reinforced shoulder straps give it added comfort and durability
  • EASY TO WEAR: The ST Next's state-of-the-art fabric has greater elasticity, making it easier and faster to put on and take off than other racing suits, while providing adequate targeted compression
9.5
Superb
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4
9.4
Superb
TYR Women's Invictus Solid Open Back Swimsuit One Piece, Royal, 28
TYR
TYR Women's Invictus Solid Open Back Swimsuit One Piece, Royal, 28
Why We Love It
  • Achieves personal best performance.
  • Enhances body position in water.
  • Provides support and stabilization.
Main Highlights
  • RACE DAY PERFORMANCE: FINA-approved with cutting edge technolgy for to help achieve your Personal Best
  • HYDROSPHERE TECHNOLOGY: Water surrounds the fabric, enhancing body postion in the water.
  • MID GRADE COMPRESSION: Helps to maximize core stabilization and support
  • FLEX BONDED SEAMS: Conform and stretch with the athlete's body to provide a durable, 360 degree stretch and uninhbited mobility.
  • 16MM SUPERSONIC FLEX BONDING: Advanced engineering allows fully bonded seams to conform and stretch with the swimmer’s body, resulting in a precisely fitted, ultra compressive suit that won’t restrict natural movement.
9.4
Superb
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5
9.3
Superb
Arena Powerskin ST Next One Piece Women's Swimsuit, FINA Approved Tech Suit, Women's Recycled Fabric Swimsuit, Women's Lined One Piece Swimsuit with Reinforced Shoulder Straps Blue
Arena
Arena Powerskin ST Next One Piece Women's Swimsuit, FINA Approved Tech Suit, Women's Recycled Fabric Swimsuit, Women's Lined One Piece Swimsuit with Reinforced Shoulder Straps Blue
Why We Love It
  • FINA approved for competition.
  • Eco-friendly recycled fabric.
  • Enhanced speed and performance.
Main Highlights
  • FINA/WORLD AQUATICS APPROVED: ST Next is the trailblazing FINA-approved women's tech suit that contains 60+ percent recycled fabric; its design ensures greater lightness, strength and speed during any swimming competition
  • RECYCLED FABRIC: 60+% of this women's competition swimsuit was created with fabric from recycled materials; in fact, it is composed of 71% polyamide, 29% elastane (recycled fabric: 65% of the polyamide is recycled)
  • PERFORMANCE: The modern ST Next women's arena swimsuit is significantly lighter than the previous ST 2.0 version, which results in less water absorption and drag; in addition, the increased support and compression on the abdomen and legs help for a powerful swim and a hydrodynamic posture
  • GOOD FIT: Ergonomic design with flatlock seams ensures an optimal fit and freedom of movement; in addition, reinforced shoulder straps give it added comfort and durability
  • EASY TO WEAR: The ST Next's state-of-the-art fabric has greater elasticity, making it easier and faster to put on and take off than other racing suits, while providing adequate targeted compression
9.3
Superb
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6
9.1
Superb
ARENA Powerskin ST Next Classic Women's Competition Racing Swimsuit, Competitive Tech Race Suit, Black
ARENA
ARENA Powerskin ST Next Classic Women's Competition Racing Swimsuit, Competitive Tech Race Suit, Black
Main Highlights
  • Building on the proven legacy of arena's Classsic Powerskin ST, the Classsic Powerskin ST Next repurposes the classic arena design in a new recycled fabric version
  • Discover the incredible difference: greater lightness, strength and speed; Focused on sustainibility: over 60% of this eco-friendly fabric is made of recycled yarns
  • The suit is significantly lighter which results in less water absorption and drag; The specific characteristics of the new fabric provide a longer-lasting compression and, consequently, greater durability
  • The ergonomic construction with low profile seams ensures perfect fit and excellent freedom of movement
  • A new shoulder design provides added reinforcement in the center strap for greater durability and increased support in the shoulders and upper back; FINA-approved
9.1
Superb
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7
9.1
Superb
Save 6%
Arena Powerskin ST Next One Piece Women's Swimsuit, FINA Approved Tech Suit, Women's Recycled Fabric Swimsuit, Women's Lined One Piece Swimsuit with Reinforced Shoulder Straps Red
Arena
Arena Powerskin ST Next One Piece Women's Swimsuit, FINA Approved Tech Suit, Women's Recycled Fabric Swimsuit, Women's Lined One Piece Swimsuit with Reinforced Shoulder Straps Red
6% Off
Why We Love It
  • Phenomenal lightweight and durable design.
  • Significantly enhances swimming performance.
  • Outstanding comfort and freedom.
Main Highlights
  • FINA/WORLD AQUATICS APPROVED: ST Next is the trailblazing FINA-approved women's tech suit that contains 60+ percent recycled fabric; its design ensures greater lightness, strength and speed during any swimming competition
  • RECYCLED FABRIC: 60+% of this women's competition swimsuit was created with fabric from recycled materials; in fact, it is composed of 71% polyamide, 29% elastane (recycled fabric: 65% of the polyamide is recycled)
  • PERFORMANCE: The modern ST Next women's arena swimsuit is significantly lighter than the previous ST 2.0 version, which results in less water absorption and drag; in addition, the increased support and compression on the abdomen and legs help for a powerful swim and a hydrodynamic posture
  • GOOD FIT: Ergonomic design with flatlock seams ensures an optimal fit and freedom of movement; in addition, reinforced shoulder straps give it added comfort and durability
  • EASY TO WEAR: The ST Next's state-of-the-art fabric has greater elasticity, making it easier and faster to put on and take off than other racing suits, while providing adequate targeted compression
9.1
Superb
Save 6%
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8
8.9
Excellent
Arena Powerskin ST Next One Piece Women's Swimsuit, FINA Approved Tech Suit, Women's Recycled Fabric Swimsuit, Women's Lined One Piece Swimsuit with Reinforced Shoulder Straps Blue
Arena
Arena Powerskin ST Next One Piece Women's Swimsuit, FINA Approved Tech Suit, Women's Recycled Fabric Swimsuit, Women's Lined One Piece Swimsuit with Reinforced Shoulder Straps Blue
Free Shipping
Why We Love It
  • FINA-approved for performance.
  • Sustainable recycled fabric.
  • Ease of wearing.
Main Highlights
  • FINA/WORLD AQUATICS APPROVED: ST Next is the trailblazing FINA-approved women's tech suit that contains 60+ percent recycled fabric; its design ensures greater lightness, strength and speed during any swimming competition
  • RECYCLED FABRIC: 60+% of this women's competition swimsuit was created with fabric from recycled materials; in fact, it is composed of 71% polyamide, 29% elastane (recycled fabric: 65% of the polyamide is recycled)
  • PERFORMANCE: The modern ST Next women's arena swimsuit is significantly lighter than the previous ST 2.0 version, which results in less water absorption and drag; in addition, the increased support and compression on the abdomen and legs help for a powerful swim and a hydrodynamic posture
  • GOOD FIT: Ergonomic design with flatlock seams ensures an optimal fit and freedom of movement; in addition, reinforced shoulder straps give it added comfort and durability
  • EASY TO WEAR: The ST Next's state-of-the-art fabric has greater elasticity, making it easier and faster to put on and take off than other racing suits, while providing adequate targeted compression
8.9
Excellent
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9
8.8
Excellent
Save 7%
Arena Powerskin ST Next One Piece Women's Swimsuit, FINA Approved Tech Suit, Women's Recycled Fabric Swimsuit, Women's Lined One Piece Swimsuit with Reinforced Shoulder Straps Blue
Arena
Arena Powerskin ST Next One Piece Women's Swimsuit, FINA Approved Tech Suit, Women's Recycled Fabric Swimsuit, Women's Lined One Piece Swimsuit with Reinforced Shoulder Straps Blue
7% OffFree Shipping
Why We Love It
  • Eco-friendly recycled materials.
  • Lightweight for enhanced performance.
  • Optimal fit and comfort.
Main Highlights
  • FINA/WORLD AQUATICS APPROVED: ST Next is the trailblazing FINA-approved women's tech suit that contains 60+ percent recycled fabric; its design ensures greater lightness, strength and speed during any swimming competition
  • RECYCLED FABRIC: 60+% of this women's competition swimsuit was created with fabric from recycled materials; in fact, it is composed of 71% polyamide, 29% elastane (recycled fabric: 65% of the polyamide is recycled)
  • PERFORMANCE: The modern ST Next women's arena swimsuit is significantly lighter than the previous ST 2.0 version, which results in less water absorption and drag; in addition, the increased support and compression on the abdomen and legs help for a powerful swim and a hydrodynamic posture
  • GOOD FIT: Ergonomic design with flatlock seams ensures an optimal fit and freedom of movement; in addition, reinforced shoulder straps give it added comfort and durability
  • EASY TO WEAR: The ST Next's state-of-the-art fabric has greater elasticity, making it easier and faster to put on and take off than other racing suits, while providing adequate targeted compression
8.8
Excellent
Save 7%
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10
8.7
Excellent
Save 51%
Arena Solid Swim Pro Team Women's One-Piece Swimsuit, Quick-Drying, Sports Swimsuit in MaxLife ECO-Fabric with Maximum Chlorine Resistance and UPF 50+ UV Protection Black-White
Arena
Arena Solid Swim Pro Team Women's One-Piece Swimsuit, Quick-Drying, Sports Swimsuit in MaxLife ECO-Fabric with Maximum Chlorine Resistance and UPF 50+ UV Protection Black-White
51% OffFree Shipping
Why We Love It
  • Durable and quick-drying fabric.
  • Chlorine-resistant for long-lasting wear.
  • Eco-friendly materials for sustainability.
Main Highlights
  • SPORTY SWIMWEAR: The women's arena Solid Swim Pro Team swimming suit is made of durable and quick-drying arena MaxLife ECO-FABRIC
  • arena MAXLIFE ECO-FABRIC: The fabric of this swimming suit is chlorine-resistant, quick-drying and extremely durable, made with recycled polyester
  • SWIMWEAR: The women's arena Solid Swim Pro Team swimsuit, part of the arena Performance line, is designed for competitive and regular swimmers who go to the pool frequently
  • COMFORTABLE: Ergonomic back cut and wide shoulder straps ensure a good fit and good support on the bust and waist thanks to its lining at the front; medium leg length
  • COMPOSITION: Women's swimsuit made of 100% Polyester (eco-friendly fabric: 51% Recycled Polyester); skin-friendly fabric with STANDARD 100 certification by OEKO-TEX
8.7
Excellent
Save 51%
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