I.FIV5
Faded Organic Cotton Muscle Tee
i.FiV5 by Simons offers this sleeveless muscle tee crafted from ultra-comfortable organic cotton stretch jersey. It features Polygiene® technology to eliminate odor and prevent bacteria growth, a raw-cut low armhole, and a relaxed fit. The front displays a large distressed white graphic reading 'LONDON' above '08' on a faded pale-yellow base; the back is plain without graphics.
- Material
- Organic Cotton Stretch Jersey
- Gender
- unisex
- Style
- casual, relaxed-fit
- Category
- Apparel & Accessories > Clothing > Shirts & Tops
Color
Size
Specifications
Relaxed-fit muscle tank in faded organic cotton with Polygiene odor control.
Polygiene technology, raw-cut armholes, organic cotton stretch jersey
- Material
- Organic Cotton Stretch Jersey
- Secondary
- elastane
- Style
- casual, relaxed-fit
- Gender
- unisex
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Shirts & Tops
Additional Attributes
- ultra-comfortable organic cotton stretch jersey fabric
- Polygiene odor control technology
- anti-bacterial treatment
- raw-cut low armhole design
- relaxed fit silhouette
- faded wash appearance
- sleeveless muscle tank style
- exclusive i.FiV5 by Simons design
Product Insights
The I.FIV5 Faded Organic Cotton Muscle Tee is a relaxed-fit midweight jersey shirt with raw-cut armholes that resist fraying and allow full mobility, designed to be worn alone or layered. The Oxford colorway is pre-faded and gains vintage character with wear, while Polygiene's lifetime odor control—using 100% recycled silver and certified skin-safe—reduces washing to preserve the faded finish, fabric breathability, and shape retention (thanks to Lycra recovery). The main tradeoff is that the relaxed fit is intentionally roomier, but you can size down for a more fitted look.
- Fit
Relaxed fit is roomier with structured drape; size down for fitted look.
Why this is supported
The brand's Q&A describes the fit as
Our relaxed fit is roomier than a standard muscle tee, with a looser body and lower armholes. If you prefer a more fitted look, we recommend sizing down.
How does the relaxed fit compare to a standard muscle tee? Should I size down for a more fitted look?The material is described as a midweight fabric that gives the relaxed fit a structured drape; the Q&A states it is
This organic cotton stretch jersey is a midweight fabric—substantial enough for standalone wear but breathable enough for layering under a jacket or overshirt.
Is the organic cotton stretch jersey a lightweight or midweight fabric? Suitable for layering or only as a standalone piece?So the fit is roomier but structured, and the brand recommends sizing down for a more fitted look.
- Armhole
Armhole edges do not fray, retain shape from Lycra recovery, and allow full mobility.
Why this is supported
The Lycra elastane in the material provides shape recovery; independent research notes that
Cotton-spandex (≤5%) adds stretch without compromising raw edge integrity.
apparel.alibaba.comAdditionally, the knit construction of the fabric prevents fraying at raw edges; an expert states that
Knit fabric cut edges will not fray like the cut edges of woven fabrics.
heatherhandmade.comThese features allow the armholes to retain their shape and remain clean-looking while allowing unrestricted movement.
- Fabric weight
Midweight jersey is substantial enough for standalone wear yet breathable for layering.
Why this is supported
Catalog confirmed the fabric is a midweight organic cotton stretch jersey. The brand describes it as
The majority cotton composition (95%) provides natural breathability, consistent with descriptions of cotton as
Naturally breathable
orbasics.com. Together, these confirm the tee's versatility for both standalone and layered wear.
- Shape retention
Lycra elastane and knit construction keep raw edges from stretching or fraying over time.
Why this is supported
The 5% Lycra elastane provides recovery, so the raw-cut armholes and neckline resist stretching out. A fabric industry source notes that
Cotton-spandex (≤5%) adds stretch without compromising raw edge integrity.
apparel.alibaba.comAdditionally, because the jersey is a knit fabric, the cut edges won't fray. Another source confirms that
Knit fabric cut edges will not fray like the cut edges of woven fabrics. They do not have a bunch of strings to get pulled.
heatherhandmade.comThis construction detail ensures the tee maintains a clean line, whether worn alone or under layers.
- Faded finish
Oxford colorway is pre-faded to gain vintage character with wear.
Why this is supported
The Oxford colorway is intentionally pre-faded so that
any subtle fading or color shifts from washing will only enhance its vintage character rather than making it appear threadbare
Faded finish: how the color ages — oxford_pre_faded_neutral, ensuring the finish gains appeal with age.
- Fade protection
Polygiene's lifetime odor control reduces washes, preserving the faded finish.
Why this is supported
Polygiene works by
reducing machine agitation and detergent exposure that typically accelerate color loss
Faded finish: how the color ages — polygiene_fade_longevity. The treatment is permanent:
Because it’s integral to the textile, Polygiene StayFresh lasts for the lifetime of most products.
polygiene.com. To maximize its effect,
Avoid fabric softener and bleach, as they can reduce effectiveness. Machine wash cold and tumble dry low.
Does the Polygiene technology require special care, such as avoiding fabric softener or bleach?. A field test confirmed that a Polygiene-treated shirt stayed odor-free after four days of exercise with only airing, directly enabling the fewer washes that protect the pre-faded finish.
- Raw armholes
Raw-cut armholes resist fraying and softly roll with age.
Why this is supported
The raw-cut armholes benefit from the knit's construction:
many of them do not fray with that classic loose-thread edge people expect from woven cloth.
fabricfraying.help. Additionally, the cotton-spandex mix ensures
Cotton-spandex (≤5%) adds stretch without compromising raw edge integrity.
apparel.alibaba.com. This means the armholes develop a soft rolled edge over time, contributing to the intentional worn-in look.
- Odor control performance
Odor-free for 4 days of activity; lifetime treatment durability.
Why this is supported
Independent testing showed a Polygiene-treated top stayed odor-free through four days of trail runs and gardening, while untreated synthetics
have a horrid underarm sweat smell after just one wear
inkl.com. The treatment
lasts the lifetime of the garment with normal washing
Does the Polygiene technology require special care, such as avoiding fabric softener or bleach?. A second-hand vest that was worn and washed many times
manages to remain odor-free even after multiple days of wear
inkl.com. These findings confirm the odor control is both immediate and persistent over years.
- Credentials
100% recycled silver; Medical Class 1 approved; bluesign, OEKO-Tex, REACH certified.
Why this is supported
The silver chloride technology uses
100% recycled silver sourced from photographic and industrial applications
alpinetrek.co.uk. It holds
Medical Class 1 approval in Europe, the same class that includes bandages for direct contact with open wounds
alpinetrek.co.uk. The manufacturer is
accredited by bluesign
polygiene.comand also complies with OEKO-Tex Eco-Passport and REACH standards.
- Care
Avoid fabric softener and bleach; machine wash cold, tumble dry low.
Why this is supported
The manufacturer's care guidance states:
Avoid fabric softener and bleach, as they can reduce effectiveness. Machine wash cold and tumble dry low.
Does the Polygiene technology require special care, such as avoiding fabric softener or bleach?- Color preservation
Less washing from odor control preserves the faded color.
Why this is supported
By suppressing odor-causing bacteria,
the tee can be worn multiple times between washes, reducing machine agitation and detergent exposure that typically accelerate color loss
Faded finish: how the color ages — polygiene_fade_longevity. This helps preserve the faded Oxford color.
- Longevity
Polygiene lasts the garment's lifetime when fabric softener and bleach are avoided.
Why this is supported
Polygiene's antimicrobial treatment is integral to the fabric and lasts the garment's lifetime when properly cared for, per the manufacturer:
Because it's integral to the textile, Polygiene StayFresh lasts for the lifetime of most products.
polygiene.comThe care advice to avoid fabric softener and bleach is explicitly stated:
Avoid fabric softener and bleach, as they can reduce effectiveness. Machine wash cold and tumble dry low.
Does the Polygiene technology require special care, such as avoiding fabric softener or bleach?Real-world tests validate this: a Polygiene-treated top worn for 21km trail runs, gardening, and several 10-12km runs over four days remained odor-free with only airing, while untreated tops smelled after one wear.
Four days of different activity sessions seems like a good innings for a synthetic top because many of my other polyester sports tops have a horrid underarm sweat smell after just one wear.
inkl.comThis means fewer washes, which also preserves the garment's fade:
reducing machine agitation and detergent exposure that typically accelerate color loss — effectively preserving the Oxford faded hue closer to its out-of-the-box appearance over time.
Faded finish: how the color ages — polygiene_fade_longevityAdditionally, a second-hand Polygiene-treated running vest with countless washes remained odor-free, confirming the longevity:
Meanwhile, an Alpkit Koulin Trail Vest top, which came to me second-hand and which I have worn and washed numerous times, manages to remain odor-free even after multiple days of wear.
inkl.com- Safety
Polygiene holds Medical Class 1 skin-safety approval and is bluesign/OEKO-TEX certified.
Why this is supported
Polygiene-treated fabrics hold the highest skin safety classification in Europe:
Consequently, Polygiene-treated fabrics have received Medical Class 1 approval in Europe, the same class that includes bandages for direct contact with open wounds.
alpinetrek.co.ukThis safety is backed by independent certifications:
We’re accredited by bluesign, which promotes consumer safety, low impact manufacturing and responsible use of resources; Oeko-Tex Eco-Passport which supports responsible manufacturing and supply chains; and we have REACH compliance, the EU’s chemicals legislation.
polygiene.com- Sustainability
Polygiene uses 100% recycled silver; a ring's worth treats 5,000 garments.
Why this is supported
The silver chloride in Polygiene comes from 100% recycled industrial and photographic silver:
Polygiene is based on silver chloride obtained from 100% recycled silver sourced from photographic and industrial applications.
alpinetrek.co.ukA single ring's worth of silver treats about 5,000 garments:
the amount of silver in a ring would be enough for around 5000 Polygiene garments.
alpinetrek.co.uk- Silver sourcing
Polygiene uses 100% recycled silver; one ring's worth treats 5,000 garments.
Why this is supported
Polygiene's antimicrobial silver is derived from 100% recycled silver.
Polygiene is based on silver chloride obtained from 100% recycled silver sourced from photographic and industrial applications.
alpinetrek.co.ukThe efficiency is such that
the amount of silver in a ring would be enough for around 5000 Polygiene garments.
alpinetrek.co.uk- Odor control durability
Odor control lasts garment lifetime; buyers report multiple odor-free wears.
Why this is supported
Polygiene's odor control is integral to the fabric and lasts for the lifetime of the product.
Because it’s integral to the textile, Polygiene StayFresh lasts for the lifetime of most products.
polygiene.comThis allows the tee to be worn multiple times between washes, reducing water and detergent usage.
Polygiene technology suppresses odor-causing bacteria so the tee can be worn multiple times between washes
Faded finish: how the color ages — polygiene_fade_longevityReal-world tests confirm effectiveness: a Polygiene-treated top remained odor-free after multiple days of activity without washing, and even a second-hand garment maintained its effectiveness.
I did a “sniff test” after each activity and I concluded that on each occasion the top was not smelly enough to go in the laundry.
inkl.comAdditionally,
an Alpkit Koulin Trail Vest top, which came to me second-hand and which I have worn and washed numerous times, manages to remain odor-free even after multiple days of wear.
inkl.com- Breathability
Breathable organic cotton jersey works alone or layered.
Why this is supported
The organic cotton jersey is touted as
Naturally breathable
orbasics.com. The brand's Q&A confirms it is
substantial enough for standalone wear but breathable enough for layering under a jacket or overshirt
Is the organic cotton stretch jersey a lightweight or midweight fabric? Suitable for layering or only as a standalone piece?- Airflow
Raw-cut armholes and relaxed fit together keep air moving.
Why this is supported
The 5% elastane maintains the raw edge's shape:
Cotton-spandex (≤5%) adds stretch without compromising raw edge integrity.
apparel.alibaba.comThe knit structure prevents fraying, with notes that
many of them do not fray with that classic loose-thread edge people expect from woven cloth.
fabricfraying.helpand that
Knit fabric cut edges will not fray like the cut edges of woven fabrics. They do not have a bunch of strings to get pulled.
heatherhandmade.comAdditionally, the brand's relaxed fit is
roomier than a standard muscle tee, with a looser body and lower armholes
How does the relaxed fit compare to a standard muscle tee? Should I size down for a more fitted look?, creating space for air circulation.
- Maintenance
Polygiene reduces washes, preserving fabric breathability.
Why this is supported
The Polygiene technology
suppresses odor-causing bacteria so the tee can be worn multiple times between washes, reducing machine agitation and detergent exposure
Faded finish: how the color ages — polygiene_fade_longevity. A wear test confirms:
I did a “sniff test” after each activity and I concluded that on each occasion the top was not smelly enough to go in the laundry.
inkl.comThis reduced washing helps maintain the fabric's breathability over time.
Image Analysis
2 images- 01
Product
Sleeveless faded pale-yellow cotton muscle tee worn by a model; crew neckline, large cut armholes, and a large distressed white chest print reading 'LONDON' above a two-digit sport-style number.
- SilhouetteSleeveless tank/muscle tee with a close crew neckline and wide raw arm openings showing the model's shoulder and upper arm.
1 region
x 0.06 · y 0.18 · w 0.88 · h 0.66 (high) - Fabric appearanceSolid faded pale yellow knit fabric with visible soft creasing and slight shadowing from folds across the front.
1 region
x 0.08 · y 0.28 · w 0.58 · h 0.58 (high) - Chest printLarge distressed white printed graphic on the chest area consisting of the word 'LONDON' above a two-digit outlined number with heavy wear and texture.
1 region
x 0.18 · y 0.26 · w 0.62 · h 0.36 (high) - Printed text transcription - top“LONDON”
1 region
x 0.28 · y 0.24 · w 0.34 · h 0.08 (high) - Printed number transcription - chest“08”
1 region
x 0.20 · y 0.30 · w 0.48 · h 0.28 (high) - Armhole detailDeep-cut armhole edge with visible inner fabric and shadowing under the arm; raw or narrow hem at the opening.
1 region
x 0.62 · y 0.26 · w 0.30 · h 0.28 (high)
Other
Lifestyle shot of a male model outdoors wearing sunglasses; architectural background and directional sunlight creating warm highlights and shadows.
- Model and poseMale model shown from chest up to mid-torso in a three-quarter profile facing left; right arm is bent forward and partially in frame.
1 region
x 0.02 · y 0.02 · w 0.96 · h 0.60 (high) - Sunglasses propLarge dark-frame sunglasses with reflective reddish-orange lenses worn by the model.
1 region
x 0.18 · y 0.03 · w 0.36 · h 0.12 (high) - BackgroundOut-of-focus architectural elements including a window or louvered surface and vertical stone-like columns in warm sunlight.
2 regions
x 0.00 · y 0.00 · w 0.38 · h 0.98 (medium); x 0.38 · y 0.00 · w 0.62 · h 0.98 (medium) - Lighting and shadowStrong directional warm sunlight from the upper left producing bright highlights on the model's shoulder and face and cast shadows under the chin and on fabric folds.
- Image crop and framingVertical crop centered on the model's upper body; lower torso and legs are outside the frame.
Colors
faded pale yellow· fabric#E3D1B5distressed white· chest print- SilhouetteSleeveless tank/muscle tee with a close crew neckline and wide raw arm openings showing the model's shoulder and upper arm.
- 02
Product
Rear view of a sleeveless pale yellow knit muscle tee shown on a model; smooth cotton-knit fabric with a crew neckline, cut armholes, and a straight hem with visible topstitching. No visible logos or graphics on the back.
- ViewRear view of the tee worn by a model, showing full back panel from neck to hem and both arm openings.
1 region
x 0.18 · y 0.12 · w 0.64 · h 0.72 (medium) - NecklineShallow crew neckline with a narrow bound neckband that lies flat against the back of the neck.
1 region
x 0.36 · y 0.08 · w 0.28 · h 0.10 (high) - ArmholesWide sleeveless arm openings with a cut or turned hem finishing; edges lie close to the shoulder without visible straps.
2 regions
x 0.18 · y 0.18 · w 0.18 · h 0.30 (high); x 0.64 · y 0.18 · w 0.18 · h 0.30 (high) - HemStraight bottom hem with visible single or twin topstitching creating a narrow finished edge that sits at model hip level.
1 region
x 0.22 · y 0.72 · w 0.56 · h 0.12 (high) - Fabric and textureSmooth medium-weight knit fabric with a matte finish and minimal surface texture consistent with cotton jersey.
1 region
x 0.26 · y 0.18 · w 0.48 · h 0.52 (medium) - Fit on modelRelaxed straight fit through the torso with slight drape away from the body at the back; shoulder seams appear set slightly inward from the model shoulder point.
1 region
x 0.26 · y 0.14 · w 0.48 · h 0.66 (medium) - Graphics and brandingNo visible graphics, prints, labels, or branding on the visible back surface of the tee.
1 region
x 0.26 · y 0.14 · w 0.48 · h 0.66 (high)
Other
Studio shot with a model against a plain light gray background; soft even lighting and minimal shadows; image framed to show the model from head to upper thighs in a three-quarter rear pose.
- BackgroundSmooth light gray studio background with no props or visible seams.
- Model poseMale model standing with back to camera and head turned slightly left, arms relaxed at sides, showing rear of garment and partial side profile of head.
1 region
x 0.20 · y 0.02 · w 0.60 · h 0.96 (medium) - Lighting and shadowsSoft, even studio lighting that reduces harsh shadows; subtle shadows appear under the arms and below the hem.
- Framing and cropImage cropped to include model head, torso, and upper thighs; lower legs and feet are outside the frame.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (low)
Colors
pale butter yellow· body#E2C996- ViewRear view of the tee worn by a model, showing full back panel from neck to hem and both arm openings.