I.FIV5
Racerback Sports Bra Medium To High-Impact Support
This medium-to-high impact racerback sports bra from the i.FiV5 performance collection features a round neckline, thin straps, and a racerback design for breathability. It is made from ultra-stretch REPREVE polyester microfiber (recycled from six plastic bottles) with a micro-perforated lining and Polygiene odor-control technology. Suitable for demanding cardio and strength workouts such as spinning, cross-training, and functional circuits, it includes soft cups with removable foam padding and a reflective logo.
Specifications
- Material
- Lining: 90% polyester, 10% spandex
- Gender
- female
- Age Group
- adult
- Condition
- new
Product Insights
I.FIV5's Racerback Sports Bra ($39 CAD) delivers medium-to-high-impact support with compression, using REPREVE recycled polyester (42% lower carbon emissions than virgin polyester, traceable via FiberPrint) and Polygiene odor control that preserves the skin microbiome. Laser-cut micro-perforations ensure durable ventilation and moisture wicking without performance compromise, while Bluesign and Oeko-Tex certifications validate environmental and safety standards. However, generic XS-XL sizing and fixed-length racerback straps limit adjustability, especially for larger cup sizes (black mesh variant recommended for D+ running), trading fit customization for a lightweight, breathable design that maintains support and odor resistance through repeated high-sweat workouts.
Verified claims
- Skin safety
- Polygiene only targets bacteria on fabric, preserving skin microbiome.
- Certifications
- The Polygiene odor-control treatment holds Bluesign approval and Oeko-Tex Eco Passport certification for responsible manufacturing and chemical safety.
- Value
- At $39 CAD, combines Polygiene and REPREVE, premium features at an accessible price.
- Ventilation
- The micro-perforated lining vents heat and sweat during high-sweat workouts.
- Durability
- Micro-perforations are physical openings, not a coating, so ventilation doesn’t decline with washing and the compression layer keeps its supportive fit.
- Traceability
- FiberPrint tracer enables independent labs to verify recycled content.
- Carbon footprint
- REPREVE yarn has 42% lower greenhouse gas emissions than virgin polyester.
- Moisture management
- Moisture regain identical to virgin polyester, no performance compromise.
- Sizing
- Uses generic XS to XL sizing, not standard bra band and cup measurements.
- Support
- Compression support from thick REPREVE fabric; the black mesh variant is marketed as extra support for high-impact activities, but D-cup high-impact running support is not established with the generic XS–XL sizing.
- Straps
- Fixed-length straps sewn into racerback; no adjustability.
- Fabric technology
- 90% polyester/10% spandex with REPREVE, Polygiene, micro-perf at $39.
- Sustainability
- Six recycled bottles, 42% lower carbon, tracer-verified recycled content.
- Performance
- Polygiene odor control lasts the bra's life; micro-perforations never lose breathability.
- Fit tradeoffs
- Generic XS–XL sizing and fixed racerback straps leave D-cup high-impact running support unresolved; the bra includes removable padding.
- Strap design
- Fixed-length straps remove adjustability to keep the bra light and breathable.
- Breathability
- Micro-perforations in the lining provide ventilation while retaining support integrity.
- Moisture wicking
- REPREVE polyester's moisture wicking is inherent to the polymer and does not wash out.
- Micro-perforated lining
- Micro-perforations remain intact through washing, preserving breathability and supportive fit.
- Odor control
- Remains breathable and resists odor through repeated high-sweat workouts.
- Cup padding
- Buyers report the removable cup padding can shift during wear and is not anchored.
- Mobility
- The racerback cut and thin straps free the shoulder blades for full overhead reach and add an open back for cooling.
- Resource footprint
- REPREVE yarn uses 67% less freshwater and 66% less fossil fuel than virgin polyester.
- Seam comfort
- Because the micro-perforations are cut directly into the lining rather than stitched as separate mesh panels, the bra has no extra seams to chafe.
Product record
- Title
- Racerback Sports Bra Medium To High-Impact Support
- Brand
- I.FIV5
- Price
- 39 CAD
- Availability
- In stock
Buying Guide
1 comparison · 5 sourcesUses
For yoga, tennis, and moderate gym workouts
According to customer reviews, this racerback bra holds in place during low-to-moderate impact sports like yoga, tennis, and weight training without excessive compression. Reviewers note it's not enough for high-impact running. The racerback design is intended to add breathability while you move, and its design makes it easier to take off when damp after sweaty sessions.[1,3]
Yoga, tennis, and moderate gym workouts — with a caveat on high-impact support
This racerback bra works as a training option for activities like yoga, tennis, and moderate gym sessions, where customers report the hold is sufficient. Though it is marketed for extra support in high-impact activities, customer reviews report the compression falls short for high-impact running or HIIT, so joggers may not get the bounce control they expect. Shoppers looking for a bra for lower-impact and moderate training may find it a fit, while those focused on running may want to weigh those reports.[2,3]
All-day comfort from workout to errands
Reviewers report wearing this I.FIV5 racerback sports bra throughout the day, from workouts to errands and lounging, without irritation. Its soft, non-restrictive band and plush fabric are credited with keeping it comfortable for daily all-day wear.[3]
Workout bra with removable padding that may need repositioning
This medium-to-high-impact racerback sports bra has thin, removable cup padding, which reviewers say can shift out of place during activity or in the wash. Some customers find the frequent readjusting frustrating, while others simply reposition the inserts and move on. It's a fit to consider if you don't mind occasionally straightening your padding — and possibly less so if you want set-and-forget padding.[3]
A base layer for open-back and racerback tops
Per customer feedback, this sports bra's racerback cut stays hidden under open-back styles, so it can work as a base layer under tank or racerback tops. That makes it a versatile option when you want support without visible straps or bands at the back.[3]
Product comparison
Compared within this brand.
| Racerback Sports Bra Medium To High-Impact Support: Choose this if your workouts are low-to-moderate impact — reviewers say it holds in place for yoga, tennis, and weight training without excessive compression, and its soft, non-restrictive band and plush fabric make it comfortable from workouts to errands. The racerback back cut also stays invisible under open-back tops, making it a versatile base layer. Note that despite the medium-to-high-impact labeling, some customers found it lacks compression and bounce control for high-impact running or HIIT, and the removable cup padding can shift during wear or washing.[3] | Mesh Racerback Sports Bra Medium To High Support: Choose this if you want a breathable bra for gym sessions, spinning, cross-training, and other cardio-and-strength workouts — reviewers found its support sufficient for moderate activity and its mesh back and moisture-wicking fabric comfortable in heat. It's made from ultra-stretch REPREVE® recycled polyester with removable foam padding, odor-controlling Polygiene® treatment, a secure wide underband, and fits true to size for most. Note that despite its medium-to-high-support billing, many reviewers say it lacks the bounce control for high-impact running, and the fixed straps can dig in or cause shoulder fatigue if you're tall or have a long torso.[1,2,4] | Multi-Strap Sports Bra Medium To High-Impact Support: Choose this if you want a medium to high-impact, pull-on sports bra for demanding cardio and strength workouts like spinning, HIIT, and cross-training — customers report its compression-level support and wide band keep everything in place without digging in. Reviewers also say it fits true to size, feels soft, and its opaque, stylish cut can even double as a swim top. Note that the pull-on design can be hard to peel off when sweaty or with limited shoulder mobility, and the removable cup pads may shift during wear and washing.[5] |
Image Analysis
2 images- 01
Product
Front-facing teal racerback sports bra shown on a model. Smooth, matte stretch fabric with wide underbust band and double-stitched neckline and armhole trim; thin shoulder straps that join toward the back are visible at the front.
- Overall shapeClose-fitting cropped athletic top with a scooped neckline and a wide underbust band; coverage extends from upper chest down to just above the midriff.
1 region
x 0.08 · y 0.18 · w 0.76 · h 0.38 (high) - Neckline and trimRounded scoop neckline with a narrow double-stitched trim that continues into the shoulder straps.
1 region
x 0.20 · y 0.12 · w 0.60 · h 0.18 (high) - Shoulder strapsRelatively narrow shoulder straps set close to the neck, running upward off the front chest toward the model's shoulders.
2 regions
x 0.18 · y 0.12 · w 0.18 · h 0.25 (medium); x 0.64 · y 0.12 · w 0.18 · h 0.25 (medium) - Underbust bandWide elasticized-looking band with a stitched horizontal seam running near its top edge; band sits flat against the torso.
1 region
x 0.12 · y 0.44 · w 0.76 · h 0.12 (high) - Fabric appearanceSmooth, tightly knitted stretch fabric with a matte finish and no visible texture pattern.
1 region
x 0.20 · y 0.20 · w 0.60 · h 0.40 (high) - Seam detailVisible topstitching along neckline, armholes and across the underbust band; seams are narrow and tonal.
1 region
x 0.16 · y 0.14 · w 0.68 · h 0.44 (high) - Visible portion of back constructionStraps angle inward from the front, suggesting a racerback connection out of view behind the shoulders (back itself not visible).Partial
1 region
x 0.18 · y 0.12 · w 0.64 · h 0.20 (medium)
Other
Studio portrait of a model wearing the product, cropped at mid-thigh with a solid warm brown background and directional soft lighting from the front-left causing gentle shadows.
- Model styling and cropImage shows a torso-on model cropped above the chin and at the hips; curly hair frames the top of the image and the face is partially visible.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (low) - Visible shorts and drawstringBlack elastic-waist shorts with a centered tied drawstring are visible at the lower edge of the image.
1 region
x 0.18 · y 0.66 · w 0.64 · h 0.24 (high) - Background and lightingUniform warm brown background with soft, even studio lighting; subtle shadowing appears along the model's sides and under the underbust band.
- Image qualitySharp focus on the product and model torso with natural color rendering and no visible text or labels in the scene.
Colors
deep teal· main body and trim#3E798Btonal teal (stitching)· visible stitching and seam lines#346975- Overall shapeClose-fitting cropped athletic top with a scooped neckline and a wide underbust band; coverage extends from upper chest down to just above the midriff.
- 02
Product
Rear view of a teal racerback sports bra worn by a model, showing the full back panel, racerback straps, and a wide underbust band with visible seam lines.
- Overall silhouetteRacerback sports bra showing a central T-shaped back panel with wide shoulder straps that merge into a narrow racerback spine and a wide elastic underbust band.
1 region
x 0.18 · y 0.18 · w 0.64 · h 0.42 (high) - Strap constructionShoulder straps are wide at the shoulders and curve inward to form a narrow racerback that sits between the shoulder blades.
1 region
x 0.30 · y 0.18 · w 0.40 · h 0.30 (high) - Underbust bandWide elastic underbust band with a horizontal stitched seam line near its top and bottom edges.
1 region
x 0.18 · y 0.44 · w 0.64 · h 0.14 (high) - Seams and topstitchingVisible double topstitching outlining the armholes and racerback panel, matching the bra color.
1 region
x 0.22 · y 0.20 · w 0.56 · h 0.36 (high) - Material appearanceFabric appears smooth with a matte finish and slight stretch, lying flat against the model's skin.
1 region
x 0.20 · y 0.20 · w 0.60 · h 0.36 (high) - Small right-side markSmall printed or embroidered mark near the right side of the underbust band; detail too small to read.Uncertain
1 region
x 0.70 · y 0.46 · w 0.05 · h 0.04 (medium)
Other
Studio-shot rear view on a model against a solid brown background; model posed with arms raised and hair held up, even soft lighting with subtle shadows.
- Model poseModel is photographed from the rear with both arms raised and hands touching the hair, exposing the full back and bra.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - BackgroundSolid warm brown background filling the frame.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Hair and stylingModel has dark curly hair gathered at the top back of the head and held by her hands.
1 region
x 0.58 · y 0.00 · w 0.36 · h 0.22 (high) - Lighting and shadowSoft, even studio lighting with mild shadows defining the model's back musculature and the bra contours.
- Crop and framingImage is vertically framed to show from the top of the head to just below the waist; lower torso and pants partially visible.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high)
Colors
teal· main fabric#2C5B6B- Overall silhouetteRacerback sports bra showing a central T-shaped back panel with wide shoulder straps that merge into a narrow racerback spine and a wide elastic underbust band.
Variants
19 SKUs| SKU | Title | Price | Avail |
|---|---|---|---|
| 4220212 | Racerback Sports Bra Medium To High-Impact Support - Black - X-Small | CA$39.00 | Yes |
| 4220213 | Racerback Sports Bra Medium To High-Impact Support - Black - Small | CA$39.00 | Yes |
| 4220214 | Racerback Sports Bra Medium To High-Impact Support - Black - Medium | CA$39.00 | Yes |
| 4220215 | Racerback Sports Bra Medium To High-Impact Support - Black - Large | CA$39.00 | Yes |
| 4220216 | Racerback Sports Bra Medium To High-Impact Support - Black - X-Large | CA$39.00 | Yes |
| 4220217 | Racerback Sports Bra Medium To High-Impact Support - White - X-Small | CA$39.00 | Yes |
| 4220218 | Racerback Sports Bra Medium To High-Impact Support - White - Small | CA$39.00 | Yes |
| 4220219 | Racerback Sports Bra Medium To High-Impact Support - White - Medium | CA$39.00 | Yes |
| 4220220 | Racerback Sports Bra Medium To High-Impact Support - White - Large | CA$39.00 | Yes |
| 4550183 | Racerback Sports Bra Medium To High-Impact Support - Brown - X-Small | CA$39.00 | Yes |
| 4550184 | Racerback Sports Bra Medium To High-Impact Support - Brown - Small | CA$39.00 | Yes |
| 4550185 | Racerback Sports Bra Medium To High-Impact Support - Brown - Medium | CA$39.00 | Yes |
| 4550186 | Racerback Sports Bra Medium To High-Impact Support - Brown - Large | CA$39.00 | Yes |
| 4550187 | Racerback Sports Bra Medium To High-Impact Support - Brown - X-Large | CA$39.00 | Yes |
| 4550188 | Racerback Sports Bra Medium To High-Impact Support - Emerald/kelly Green - X-Small | CA$39.00 | Yes |
| 4550189 | Racerback Sports Bra Medium To High-Impact Support - Emerald/kelly Green - Small | CA$39.00 | Yes |
| 4550190 | Racerback Sports Bra Medium To High-Impact Support - Emerald/kelly Green - Medium | CA$39.00 | Yes |
| 4550191 | Racerback Sports Bra Medium To High-Impact Support - Emerald/kelly Green - Large | CA$39.00 | Yes |
| 4550192 | Racerback Sports Bra Medium To High-Impact Support - Emerald/kelly Green - X-Large | CA$39.00 | Yes |
Documents & Data
Customer Reviews
13 total13 reviews · out of 5
Sports bra review
Performs really well, good support and comfortable. Only negative is the “ floating” cup padding which tends to move around a bit. I wish this was attached inside.
love
soft comfy Super great support all day comfort
Very comfortable
Soft material, comfortable and good support
Perfect fit
Very comfortable and good support for smallish breasts.
Comfortable and supportive
One of the more comfortable sports bras I've worn. The padding is easy to move around inside the bra and the chest band isn't restrictive.
Perfect fit
Perfect fit
Good fit, great price
This sports bra is comfortable and holds everything in place. It washes well too.
Mesh?
I thought the back of this bra was going to be mesh and breathable instead it has mesh lining. I’m extra wide around the rib cage and this bra didn’t dig into my ribs. Soft fabric. I bought both large and extra large to try on went with the large. Wear for tennis
Excellent Simple Sports Bra
Excellent Simple Sports Bra
Can actually get it off after a tough workout
This is the sports bra I’ve been waiting for! It’s so comfortable and holds everything in place. And the best part is that I can actually get it off after a tough workout!
Soutien
Confortable et parfait pour porter sous une camisole à dos nageur, je recommande !
Très bien!
Je l’aime beaucoup, très confortable mais je ne le porterais pas pour de la course pas assez de soutien
Comfy during Yoga
Comfy during Yoga