I.FIV5
Ultra-Soft Muscle Tee
The Ultra-Soft Muscle Tee is a sleeveless crew-neck top from i.FiV5 by Simons' BALANCE collection, designed in Canada. It is made from ultra-soft stretch jersey using a recycled polyester blend, featuring Polygiene technology for odor control, inner armhole seams, and a relaxed silhouette with wide armholes and a straight hem. Suitable for yoga, training, and casual wear, the tee provides comfort and mobility with a matte black finish.
- Material
- Ultra-soft stretch jersey made from a recycled polyester blend
- Gender
- unisex
- Style
- athleisure, relaxed-fit, minimal
- Category
- Apparel & Accessories > Clothing > Activewear
Color
Size
Specifications
Ultra-soft muscle tee with relaxed fit, made from recycled polyester blend with odor-control technology.
Polygiene odor control, reflective logo, inner armhole seams
- Material
- Ultra-soft stretch jersey made from a recycled polyester blend
- Style
- athleisure, relaxed-fit, minimal
- Occasion
- yoga, workout, loungewear
- Gender
- unisex
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Activewear
Additional Attributes
- Amplified silhouette inspired by yogi clothing
- Ultra-soft stretch jersey from recycled polyester blend
- Polygiene odor control technology
- Inner armhole seams for comfort
- Reflective i.FiV5 logo for visibility
- Relaxed fit for ease of movement
Product Insights
The I.FIV5 Ultra-Soft Muscle Tee is a permanently bonded silver-salt-treated garment that inhibits odor-causing bacteria, allowing repeated wear after sweat sessions without washing. Made with recycled silver from electronic waste and Bluesign-approved, its 89% recycled polyester fabric wicks sweat for fast drying and a dry, soft feel. However, to maintain fit and odor control, users must avoid fabric softener, machine drying (which causes bagging), and instead air dry; the tee's size range tops out at XL. Inner armhole seams reduce curling and fraying compared to raw-cut armholes, offering a cleaner finish.
Verified claims
- Durability
- Permanently bonded silver-salt treatment lasts the garment's life.
- Odor control
- Inhibits odor-causing bacteria, so you can wear the tee again after a sweaty session.
- Care
- Avoid fabric softener and air out after sweating to maintain Polygiene's effectiveness.
- Certification
- Bluesign-approved and made with recycled silver from electronic waste.
- Moisture management
- Sweat evaporates from the fabric surface, keeping the tee dry and soft.
- Sustainability
- Odor control technology uses recycled silver and holds Bluesign certification.
- Sizing
- Size range ends at XL; no XXL or larger sizes.
- Armhole finish
- Inner armhole seams give a cleaner finish than raw-cut armholes.
- Fit preservation
- Machine drying causes the tee to bag out; air drying preserves the shape.
- Washing practices
- Cold wash, mesh bag, no softener preserve fit and odor control.
- Drying practices
- Air drying prevents elastane damage and uses fast-drying fabric.
- Armhole seams
- Inner armhole seams reduce curling and fraying over time.
- Quick drying
- 89% recycled polyester's 0.4% moisture absorption ensures fast air drying.
- Construction
- Inner armhole seams resist curling and fraying unlike raw-cut armholes.
Product record
- Title
- Ultra-Soft Muscle Tee
- Brand
- I.FIV5
- Price
- 35 CAD
- Availability
- In stock
Deep Research
Fit, sizing, and armhole cut
- While some I.FIV5 muscle tees like the Faded Organic Cotton version use raw-cut low armholes for a deconstructed aesthetic, the Ultra-Soft Muscle Tee opts for inner armhole seams, which provide a cleaner finish and likely more structure around the arm opening — a detail that may reduce curling or fraying over time and lends a more polished look.
Care and washing for long-lasting wear
- A mesh laundry bag prevents the soft jersey from rubbing against zippers, hooks, and rougher fabrics in the load, which is the primary cause of surface pilling and snags that would prematurely age the tank's appearance.
- Washing at 30°C or below prevents the cumulative weakening of polyester fibers and the loss of elastane memory — even a few hot cycles can leave the tank feeling thinner and less resilient.
- Leaving the tank damp and sweaty in a gym bag allows bacteria to multiply and embed into the fibers, creating stubborn smells that force the Polygiene treatment to work overtime; airing it out or rinsing immediately after a workout keeps the odor control system effective.
- Fabric softener coats the fibers with a nutrient-rich residue that actually feeds odor-causing bacteria, overwhelming the Polygiene treatment's antimicrobial action and leaving the tank smelling stale after a few wears.
- Air drying preserves the relaxed fit and stretch recovery, since dryer temperatures (50–70°C on low) far exceed the 40°C threshold where elastane fibers undergo permanent oxidative degradation — multiple dryer cycles can cause the tank to bag out and lose its shape.
Softness and breathability of recycled polyester
- Like virgin polyester, recycled polyester has excellent quick-dry behavior — the fiber's low moisture absorption means the tee goes from wet to wearable in minutes, making it ideal for hot yoga or a gym-to-street transition.
- Recycled polyester fibers absorb only 0.4% moisture, so sweat isn't wicked into the core of the yarn — instead it sits on the surface and evaporates, keeping the fabric feeling dry and lightweight through a workout, unlike cotton that soaks up and holds onto moisture.
- The bonded silver-salt Polygiene® treatment continuously inhibits the growth of odor-causing bacteria on the fabric, which means you can get through a sweaty session and still wear the tee without immediate washing — a practical advantage for minimalist gym bags or travel.
How well Polygiene odor control works
- Polygiene was originally developed in 2006 to prevent contamination in hospital settings and uses recycled silver chloride — extracted from electronic waste — to inhibit the growth of odor-causing bacteria on fabric while leaving the skin’s own microbiome untouched.
- Polygiene treatment is Bluesign approved, meeting rigorous independent standards for sustainability and chemical safety in textile manufacturing, and its active ingredient starts as silver recovered from e-waste, so the odor control adds no virgin mining footprint to the tank’s recycled polyester construction.
Image Analysis
3 images- 01
Product
Front view of a black sleeveless muscle tee worn by a model; crew neckline and raw arm openings visible with a straight hem falling near the hips.
- Overall silhouetteSleeveless muscle tee shown on a model from the front with a straight, slightly relaxed fit through the torso and a hem that rests near the top of the hips.
1 region
x 0.18 · y 0.14 · w 0.64 · h 0.72 (high) - NecklineNarrow crew neckline with a visible ribbed band lying flat against the neck.
1 region
x 0.35 · y 0.12 · w 0.30 · h 0.08 (high) - Arm openingsWide sleeveless arm openings with fabric finishing that follows the shoulder line and exposes the upper arms.
2 regions
x 0.18 · y 0.16 · w 0.14 · h 0.28 (high); x 0.68 · y 0.16 · w 0.14 · h 0.28 (high) - Fabric appearanceSmooth knit fabric with a matte finish and no visible pattern or texture variations at this resolution.
1 region
x 0.30 · y 0.22 · w 0.40 · h 0.50 (medium) - Hem detailStraight hem with a single visible stitching line; hem falls over the top of the model's pants.
1 region
x 0.22 · y 0.74 · w 0.56 · h 0.12 (high) - Small side tagSmall rectangular fabric tag attached at the lower right side seam, tag detail not legible.Partial
1 region
x 0.69 · y 0.78 · w 0.04 · h 0.04 (medium)
Other
Studio shot of a male model against a plain light background, three-quarter view with model looking left and hands partially in pockets; soft even lighting and minimal shadows.
- Shot compositionCentered vertical composition showing the model from head to mid-thigh against a plain light gray to white background.
- Model poseModel faces forward with a slight turn of the head to the left, left hand in pocket and right hand hanging by the side.
2 regions
x 0.12 · y 0.64 · w 0.18 · h 0.28 (high); x 0.70 · y 0.64 · w 0.18 · h 0.28 (high) - Lighting and shadowEven soft studio lighting with subtle shadows visible along the sides of the torso and under the chin, no harsh highlights.
- Image cropImage is cropped just below mid-thigh and above the top of the head, leaving full view of the upper body and most of the arms.
Colors
matte black· body#0E0E0E- Overall silhouetteSleeveless muscle tee shown on a model from the front with a straight, slightly relaxed fit through the torso and a hem that rests near the top of the hips.
- 02
Product
Black sleeveless muscle tee shown from the back on a male model; smooth knit fabric with a crew-style neckline, wide armholes, visible shoulder seams, and a straight hem with topstitching.
- Overall silhouetteSleeveless straight-cut tank with full back coverage and a loose, relaxed fit over the torso.
1 region
x 0.12 · y 0.08 · w 0.64 · h 0.78 (high) - NecklineCrew-style neckline with narrow ribbed binding visible at the back neck edge.
1 region
x 0.28 · y 0.06 · w 0.28 · h 0.10 (high) - Armhole cutWide deep armholes with a clean finished edge exposing the upper arms and shoulder area.
2 regions
x 0.66 · y 0.17 · w 0.20 · h 0.36 (high); x 0.12 · y 0.16 · w 0.18 · h 0.40 (high) - Back panel and seamsSingle-piece back panel with visible shoulder seams; no center back seam or vents are visible.
1 region
x 0.18 · y 0.12 · w 0.48 · h 0.60 (high) - Hem finishStraight bottom hem with a visible narrow topstitch running parallel to the edge.
1 region
x 0.18 · y 0.72 · w 0.50 · h 0.12 (high) - Fabric appearanceSmooth, fine-knit fabric with a matte finish and minimal surface texture; slight horizontal compression marks visible across the back.
1 region
x 0.20 · y 0.20 · w 0.44 · h 0.48 (high) - Graphics or brandingNo visible logos, prints, or text on the visible back surface of the tee.
Other
Studio shot showing the garment on a male model against a plain light gray background with soft, even lighting; cropped above the knees and slightly angled to show the back and right profile of the model.
- Model presentationMale model standing with body turned slightly to the right, head turned further right showing a three-quarter profile; left arm mostly visible, right arm near side seam.
1 region
x 0.44 · y 0.00 · w 0.46 · h 0.86 (high) - Background and lightingUniform light gray studio background with soft, diffused lighting and minimal harsh shadows; gentle shadowing along the arm and under the hem.
- Supporting garment visibleOlive-green shorts visible at the lower portion of the frame, partially covered by the tee.
1 region
x 0.28 · y 0.78 · w 0.44 · h 0.20 (high) - Image crop and qualityHigh-resolution, well-lit image cropped to include the model from just above the head to mid-thigh; no motion blur.
Colors
matte black· main body#0E0E0E- Overall silhouetteSleeveless straight-cut tank with full back coverage and a loose, relaxed fit over the torso.
- 03
Product
Front view of a black sleeveless muscle tee worn by a model; visible features include a crew neckline, wide armholes, smooth knit fabric, and a straight hem falling to the hips.
- SilhouetteSleeveless tank/muscle tee with a straight vertical torso and relaxed fit on the model
1 region
x 0.24 · y 0.18 · w 0.52 · h 0.59 (high) - NecklineNarrow crew neckline with slightly raised binding that sits close to the base of the neck
1 region
x 0.37 · y 0.15 · w 0.26 · h 0.08 (high) - ArmholesWide sleeveless arm openings showing upper arms and shoulders, cut straight at the shoulder seam
2 regions
x 0.24 · y 0.18 · w 0.12 · h 0.20 (high); x 0.64 · y 0.20 · w 0.12 · h 0.20 (high) - Fabric appearanceSmooth, lightweight knit with a matte finish and soft drape; minimal visible texture
1 region
x 0.30 · y 0.28 · w 0.40 · h 0.45 (high) - HemStraight bottom hem that falls to the top of the model's trousers, with a small natural fold at the front
1 region
x 0.33 · y 0.62 · w 0.34 · h 0.10 (high)
Other
Studio lifestyle shot showing a model wearing additional garments and accessories against a light gray background; soft even lighting with minimal shadow.
- Model and stylingMale model wearing a dark baseball cap, an olive green sweatshirt draped over the shoulders, olive drawstring trousers, and carrying a black shoulder bag
1 region
x 0.08 · y 0.02 · w 0.84 · h 0.96 (medium) - CapCurved-brim baseball cap in a dark color pulled low on the forehead
1 region
x 0.27 · y 0.00 · w 0.28 · h 0.14 (high) - BagBlack fabric shoulder bag hanging at the model's right side with visible strap and soft collapsed shape
1 region
x 0.70 · y 0.44 · w 0.20 · h 0.36 (high) - Background and lightingPlain light gray studio background with soft even lighting and subtle shadowing along the model's left side
- Crop and framingImage framed from mid-thigh to slightly above the head, model slightly turned to the viewer's left
Colors
matte black· body#0E0E0E- SilhouetteSleeveless tank/muscle tee with a straight vertical torso and relaxed fit on the model
Documents & Data
Customer Reviews
6 total6 reviews · out of 5
belle qualité , douce
belle qualité , douce
Très confortable
Duoer
Parfait
Tissu très doux. Dommage que la taille xxl ne soit pas offerte
Parfait
Belle texture
parfait
tissus très agréable pour le sport
Très belle camisole
Confortable
Q&A
1 answered- Does the Polygiene treatment last for the life of the garment, or does it wash out after a certain number of washes?
- Polygiene® treatment is permanently bonded to the fibers and is designed to last the life of the garment. It will not wash out over time, as the active silver salt technology is integrated into the fabric during manufacturing.