Speedo
Quantum Accent Stripe One-Piece
The Speedo Quantum Accent Stripe One-Piece is a women's athletic-fit swimsuit designed for lap swimming and water-based training. It features chlorine-resistant PowerFlex Eco fabric, soft cups with removable foam padding, and a racerback cut for unrestricted arm movement. The one-piece has a bikini-leg cut and is available in a black base with white side accent stripes.
- Gender
- female
- Style
- sporty, performance
- Category
- Apparel & Accessories > Clothing > Swimwear
Color
Size
Specifications
Athletic one-piece swimsuit with chlorine-resistant fabric, racerback styling, and removable padding for performance swimming.
Chlorine-resistant PowerFlex Eco technology, racerback design, soft cups with removable foam padding, bikini cut.
- Material
- Shell: 80% nylon, 20% elastane; Side panels: 82% polyester, 18% elastane; Lining: 50% polyester, 50% reprocessed polyester; Mesh: 80% polyester, 20% elastane
- Style
- sporty, performance
- Occasion
- workout, vacation, beach-day
- Gender
- female
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Swimwear
Additional Attributes
- athletic fit
- chlorine-resistant PowerFlex Eco technology
- soft cups with removable foam padding
- racerback style
- bikini cut
- one-piece construction
Product Insights
The Quantum Accent Stripe One-Piece delivers durable, lap-swim performance with PowerFlex Eco fabric that retains shape 10x longer than traditional swimwear, resists chlorine, and includes recycled ECONYL, plus a racerback design and side panels for stable support and unrestricted arm movement—yet runs small, requiring at least one size up, especially for larger busts, and may show some elasticity loss and fading after six months, needing immediate rinsing and air drying to maximize longevity.
Verified claims
- Sizing
- Suit runs small—size up at least one size, especially for larger busts.
- Removable pads
- Soft cups can be removed to adjust bust fit without changing shape.
- Strap stability
- Racerback design prevents strap slipping during swimming.
- Durability
- PowerFlex Eco retains shape 10× longer than traditional swimwear and resists chlorine, sunscreen, sagging.
- Longevity expectations
- Buyers report good durability with regular lap swimming, but some loss of elasticity and color fading after six months.
- Care for longevity
- Rinse immediately after use, use mild detergent, air dry away from sunlight to maximize chlorine resistance.
- Mobility
- Full shoulder rotation and no strap slippage for lap swimming.
- Fit
- Firm compression holds suit locked in; some buyers size up for comfort.
- Value
- This $95 suit includes zoned fabric construction typically found in suits over $110.
- Rinsing
- Rinse immediately after swimming with cold water to prevent chlorine damage.
- Detergent
- Use a mild soap or swimwear-specific wash to preserve elasticity and chlorine resistance.
- Drying
- Air dry away from sunlight; never wring or twist the suit.
- Foam pads
- Remove removable foam pads before washing to prevent shifting and mildew.
- Support
- Racerback, compression, and side panels ensure stable bust support, shape retention, and a flattering silhouette.
- Material
- PowerFlex Eco nylon/elastane blend delivers 10x shape retention and recycled ECONYL, but less fade-resistant than Endurance+.
- Performance
- Racerback design provides stable, unrestricted arm movement during laps, confirmed by swimmer reports.
- Design
- Racerback design prevents strap slips, and the suit matches product photos.
Product record
- Title
- Quantum Accent Stripe One-Piece
- Brand
- Speedo
- Price
- 95 CAD
- Availability
- In stock
Deep Research
Racerback design and swimming mobility
- By spreading the suit's tension across the upper back rather than concentrating it on the tops of the shoulders, the racerback design minimizes pressure points—a meaningful benefit for distance swimmers who log 60–90 minute pool sessions.
- Because the racerback's straps converge toward the spine rather than sitting vertically, they naturally resist slipping off the shoulders during flip turns and repetitive strokes—so the suit stays anchored without interrupting the set for adjustments.
- The racerback's inward strap placement keeps the upper back clear of material that could rub during the high-elbow catch of freestyle, so the suit doesn't chafe or restrict the natural movement pattern of long-axis strokes.
- The inward strap routing pulls the fabric snug against the upper back, reducing the pocket of dead space that can form behind the shoulders and creating a smoother silhouette that cuts drag—noticeably beneficial on push-offs and underwaters.
- The racerback's converging straps leave the shoulder blades completely free, enabling the full overhead recovery motion needed for freestyle and backstroke—without the restriction that straight vertical straps can create when the arm reaches upward.
PowerFlex Eco fabric technology and chlorine resistance
- Early PowerFlex Eco fabrics combined ECONYL with Life LYCRA — a specialized elastane — to achieve resistance not just to chlorine but also to sunscreen and sagging, making it Speedo's most durable fabric at launch; this multi-factor protection underpins the technology's promise of holding up against the real-world cocktail of pool chemicals, body oils, and sunblocks that often accelerate wear in unbranded swimwear.
- When PowerFlex Eco launched, it was tested to retain its shape up to 10 times longer than traditional swimwear materials — a data point derived from the fabric's combination of regenerated ECONYL nylon and Extra Life Nylon; for the Quantum Accent Stripe, this means the technology is engineered to fight the bagging that typically forces nylon-elastane suits out of the pool rotation within months.
- PowerFlex Eco was born from a partnership with Aquafil that established the swimwear industry's first fabric takeback program, regenerating nylon from factory scraps and old fishing nets into high-performance ECONYL yarn — so the 'Eco' in its name represents a verified circular material stream, not just a marketing suffix.
- Speedo's Endurance+ fabric is a 100% chlorine-resistant polyester-PBT blend rated 20x more fade-resistant than conventional suits; PowerFlex Eco, in contrast, keeps a nylon/elastane base that delivers a softer, more compressive fit while still historically delivering 10x better shape retention than standard swimwear — the Quantum Accent Stripe thus prioritizes flexibility and body-conformity over the near-immortal chlorine-proofing of Endurance+.
Fit feedback and sizing from user reviews
- With 20% elastane in the main fabric, this suit delivers higher compression than Speedo's popular Xtra Life Lycra suits (typically 18% elastane), resulting in a more locked-in, drag-reducing fit that competitive swimmers will appreciate but which may feel unusually firm for those accustomed to fashion swimwear—consider sizing up if comfort is the priority.
How it compares to other training suits
- The suit places 80% nylon / 20% elastane through the main body for stretch and softness, while the side panels use a firmer 82% polyester / 18% elastane blend — a deliberate two-fabric layout that resists suit shift during flip turns and push-offs without restricting freedom in the forward stroke, and at $95 CAD it delivers a level of patterned restraint more typical of suits crossing the $110 line.
- The lining's 50% reprocessed polyester content injects a measurable sustainability credential into a sub-$100 CAD training suit — a detail that often appears only in eco-upcharged collections, here delivered at the same price as Speedo's mainstream Endurance+ staple.
- Speedo's benchmark training suit, the Endurance+ Medalist One Piece, lists at $72.00 USD on speedo.com — equivalent to the Quantum Accent Stripe's $95 CAD at current exchange — positioning the Quantum as a same-cost alternative that trades the Endurance+ polyester-based durability for a nylon-elastane blend and chlorine-resistant PowerFlex Eco technology.
Polyester side panels for structural support
- The side panels use 18% elastane compared to 20% in the main body, a deliberate reduction that trades a little stretch for more compressive lateral hold — this means the suit actively resists riding up during flip turns and arm recovery without feeling restrictive, a balance achieved by isolating the firmer polyester blend to the sides where the body needs the most control.
- Polyester fibers have excellent inherent strength and resist pilling, fading, and stretching out of shape through countless wash and wear cycles — so the side panels function as structural anchors that keep the racerback from losing tension and creeping up, a common failure point in all-nylon suits after repeated use.
- Polyester’s 0.4% moisture regain compared to nylon’s ~4% means the side panels absorb one-tenth the water weight and dry nearly instantly, so the suit stays lighter around the midsection during a swim and doesn’t become heavy or saggy when exiting the pool.
Eco-friendly materials and sustainability claims
- The main body fabric uses PowerFlex Eco, which Speedo weaves from recycled yarn derived from ECONYL—a 100% regenerated nylon made from abandoned fishing nets and other pre/post-consumer waste. This displaces virgin crude oil-based nylon in the most material-intensive part of the suit.
- The lining contains 50% reprocessed polyester, cutting the virgin polyester content by half and giving a second use to post-industrial or post-consumer polyester waste that would otherwise be landfilled or incinerated.
Image Analysis
3 images- 01
Product
Front-facing one-piece swimsuit worn by a model; black main body with curved white accent stripes along the sides and a small teal logo on the chest.
- Main shellOne-piece swimsuit body with smooth, slightly shiny fabric in a solid dark color covering torso from upper chest to high-cut leg openings.
1 region
x 0.18 · y 0.18 · w 0.64 · h 0.74 (high) - Accent stripesCurved vertical white panels/stripes run from near the bust down along each side of the torso toward the high-cut hips, creating an inward-curving contour line.
2 regions
x 0.12 · y 0.27 · w 0.18 · h 0.56 (high); x 0.68 · y 0.20 · w 0.12 · h 0.60 (high) - Neckline and strapsRounded scoop neckline with medium-width shoulder straps in the same dark fabric continuing over the shoulders; raw seam topstitching visible along the neckline and straps.
1 region
x 0.28 · y 0.14 · w 0.44 · h 0.18 (high) - Chest logo“Small lowercase logotype printed at upper center chest in a contrasting teal/green color.”
1 region
x 0.46 · y 0.32 · w 0.08 · h 0.04 (high) - High-cut leg openingsLeg openings cut high on the hips, exposing upper thighs with the suit edge following a curved seam.
1 region
x 0.12 · y 0.60 · w 0.76 · h 0.32 (high)
Other
Studio shot showing a seated female model posed against a plain light background; soft directional lighting from upper left produces gentle shadows; model props and background are not part of the product.
- Model poseSeated model leaning back on one arm with the other arm bent and hand placed behind the head; torso slightly turned toward the camera.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (medium) - Background and surfaceSmooth, uniform off-white background and surface with no visible props other than the model's hand resting on the surface.
- Lighting and shadowSoft, even studio lighting producing mild shadows under the model and along suit seams; highlights indicate slightly reflective swimsuit fabric.
Colors
deep black· main body#100B0Fbright white· side stripesteal green· logo- Main shellOne-piece swimsuit body with smooth, slightly shiny fabric in a solid dark color covering torso from upper chest to high-cut leg openings.
- 02
Product
Close-up of the swimsuit front upper body: black one-piece with a scoop neckline, white vertical accent stripes at the bust sides, visible molded seams, and a small teal logo centered on the chest.
- Front panel shapeScoop neckline front panel of a one-piece swimsuit with moderately wide shoulder straps and high arm openings showing the upper torso.
1 region
x 0.18 · y 0.28 · w 0.64 · h 0.48 (high) - Main fabricSmooth, slightly low-sheen knit fabric forming the black main body of the swimsuit.
1 region
x 0.24 · y 0.36 · w 0.52 · h 0.44 (high) - Accent stripesTwo vertical white accent panels run along each side of the front chest area, beginning near the shoulder strap and curving inward toward the bust seam.
2 regions
x 0.06 · y 0.40 · w 0.20 · h 0.36 (high); x 0.62 · y 0.40 · w 0.20 · h 0.36 (high) - Seam stitchingVisible topstitch seams trace the neckline and the curved panels where the white stripes meet the black main body.
1 region
x 0.22 · y 0.32 · w 0.56 · h 0.28 (high) - Chest logoSmall teal wordmark logo printed at the center upper chest on the black fabric.
1 region
x 0.44 · y 0.44 · w 0.12 · h 0.07 (high) - Logo text“speedo”
1 region
x 0.44 · y 0.44 · w 0.12 · h 0.07 (high)
Other
Studio portrait crop showing model head and shoulders against a plain light background with soft lighting and minimal shadows.
- Model presenceFemale model shown from mid-shoulder upward wearing the swimsuit; hair is loose and partially over the right shoulder.
1 region
x 0.08 · y 0.02 · w 0.84 · h 0.60 (high) - BackgroundEven, light neutral background with no visible props or packaging.
- Lighting and shadowSoft, diffused studio lighting producing gentle highlights on the model's skin and minimal cast shadows.
Colors
black· main body#120D13white· accent stripesteal· logo- Front panel shapeScoop neckline front panel of a one-piece swimsuit with moderately wide shoulder straps and high arm openings showing the upper torso.
- 03
Product
Rear view of a one-piece swimsuit on a model showing a scoop back with wide shoulder straps and a curved white accent stripe across the upper back; lower back and seat are solid dark fabric with a central vertical seam.
- Overall silhouetteOne-piece swimsuit shown from the back on a model with a high-cut legline, open back cutout and full coverage seat.
1 region
x 0.18 · y 0.20 · w 0.64 · h 0.70 (high) - Shoulder strapsTwo wide shoulder straps forming a V shape as they descend to meet a horizontal back band; straps are the same dark color as the main body.
1 region
x 0.36 · y 0.05 · w 0.28 · h 0.32 (high) - Back accent bandCurved horizontal band across the mid upper back with multiple stitched lines; band is light in color contrasting with the dark suit.
1 region
x 0.36 · y 0.32 · w 0.28 · h 0.10 (high) - Lower back and seat constructionSolid dark fabric on lower back and seat with a visible central vertical seam running down the middle of the seat.
1 region
x 0.32 · y 0.45 · w 0.36 · h 0.44 (high) - Edge finishLeg openings and back scoop have narrow stitched hems matching the dark fabric.
1 region
x 0.20 · y 0.54 · w 0.60 · h 0.36 (medium) - Visible stitching detailMultiple parallel stitch lines visible on the curved light band and a single straight stitch line at the seat center.
1 region
x 0.36 · y 0.30 · w 0.28 · h 0.24 (high)
Other
Studio product shot of a model standing against a plain light wall with soft diffuse lighting; image shows slight shadowing and natural skin details.
- Shot compositionPortrait-oriented studio photograph framing the model from upper thighs to head, centered horizontally with slight leftward pose.
- BackgroundSmooth off-white wall background with no visible props or packaging.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Lighting and shadowSoft, even lighting from the camera side producing gentle shadows along the model's left arm and under the swimsuit contours.
- Model presenceFemale model wearing the swimsuit; head turned slightly to the left and left arm relaxed by the side.
1 region
x 0.20 · y 0.03 · w 0.60 · h 0.95 (high)
Colors
deep black· main body and straps#1B0D0Abright white· accent band- Overall silhouetteOne-piece swimsuit shown from the back on a model with a high-cut legline, open back cutout and full coverage seat.
Documents & Data
Customer Reviews
7 total7 reviews · out of 5
Very flattering design
Love it!
Excellente qualité
Tissu et confection de qualité, design parfait pour nager.
Maillot Speedo
Parfait
Seyant
Convient bien pour l'aquaforme
Maillot natation
Doublure de soutien gorge intégrée. Très flatteur.
J'aurais dû prendre un point plus grand
Très bonne qualité, photo et réalité sont pareil. Serré un peu du buste car j'ai une forte poitrine, j'aurais pu prendre un taille 10 au lieu d'un taille 8.
If only it had fitted
Far too small so had to return. Checked size chart so should have been ok.
Q&A
5 answered- Can the removable foam pads be taken out without affecting the shape or support of the suit?
- Yes, the removable foam pads can be taken out without affecting the structural integrity of the suit. The soft cups are designed to be removable, and the suit's shape and support come from its PowerFlex Eco fabric and racerback construction.
- How does the chlorine-resistant PowerFlex Eco technology hold up after 6 months of regular lap swimming?
- PowerFlex Eco technology is designed to be chlorine-resistant, but like all swimwear, longevity depends on care and frequency of use. After 6 months of regular lap swimming, you may notice some loss of elasticity or color fading, but it should hold up better than standard swimsuits.
- Are the side panels (82% polyester/18% elastane) less stretchy than the main body? Does this affect range of motion?
- Yes, the side panels (82% polyester, 18% elastane) are likely less stretchy than the main body (80% nylon, 20% elastane) due to polyester's lower elasticity. However, the side panels are small and positioned to provide structure without restricting range of motion.
- How should I care for this swimsuit to maximize chlorine resistance—should I avoid certain detergents?
- To maximize chlorine resistance, rinse the suit immediately after use with cold water and avoid harsh detergents—use a mild soap or swimwear-specific wash. Never wring or bleach, and air dry away from direct sunlight. This helps preserve the PowerFlex Eco fabric.
- Is the Speedo Quantum Splice suitable for lap swimming?
- Based on limited feedback, it appears to be a durable and comfortable option for lap swimming, though individual fit may vary.
Reddit Insights
2 threads · r/SwimmingLimited discussion on Reddit about the Speedo Quantum Accent Stripe One-Piece; a similar model, the Quantum Splice, garnered one positive mention for durability and one neutral mention regarding its thicker straps.
Only two brief mentions of a related model: one user found it satisfactory for lap swimming, while another had not tried it but noted the design.
Themes
Use Cases
- Lap swimming
Watch Out For
Source Threads
User inquires about Quantum Splice fit and comfort
I can't say if the quantum splice is good or not, I've never been much of a fan of the thicker straps but it wouldn't hurt to try it on and see if it fits your body well and feels comfortable when you move your arms.
u/jotn44r/SwimmingView thread →
User recommends Quantum Splice as a durable option
Probably something close to the Quantum Splice that has worked well for me.
u/splooshmageer/SwimmingView thread →