I.FIV5
Perforated Stretch Short Length: 4"
These are lightweight running shorts with a 4-inch inseam, made from stretch recycled polyester and featuring a built-in microfibre lining. They include an elastic drawcord waist, zipped front pockets, side vents, and small perforations for ventilation. The Polygiene treatment prevents odor-causing bacteria growth.
- Material
- Recycled polyester
- Gender
- male
- Style
- activewear, sporty, performance
- Category
- Apparel & Accessories > Clothing > Activewear
Specifications
Lightweight perforated stretch running shorts with built-in lining and zippered pockets.
Polygiene odour control, zippered pockets, side vents, drawcord waist
- Material
- Recycled polyester
- Style
- activewear, sporty, performance
- Occasion
- workout, sports-event
- Gender
- male
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Activewear
Additional Attributes
- Perforated fabric for breathability
- Lightweight and soft
- Stretch recycled polyester construction
- Built-in microfibre lining
- Polygiene odour control technology
- Drawcord-adjustable elastic waist
- Zippered front pockets
- Side vents for ventilation
- 4-inch inseam
Product Insights
The I.FIV5 Perforated Stretch Short (4" inseam, $69 CAD) is a performance running short that combines permanent odor control via Polygiene (tested for 4–5 days of daily wear without odor when aired out) with breathability from perforations, side vents, and a short inseam that accelerates cooling and evaporation. It prevents chafing through a built-in microfibre brief and anchored hem, while the 4" length reduces leg swing weight and ensures stride freedom. Made from 100% recycled polyester that performs within 2–3% of virgin in wicking and durability, it offers environmental benefits (45–85% less energy) without sacrificing quality. The tradeoff: the built-in liner lacks a phone pocket, so storage relies on front zippered pockets. Care requires cold wash and air drying. At over 30% less than Tracksmith Twilight Shorts with the same Polygiene, this Simons-exclusive, Canada-designed piece delivers premium functionality and value.
Verified claims
- Odor control
- Silver chloride is permanently bonded to the fabric and controls odor-causing bacteria for the life of the garment.
- Freshness
- Polygiene-treated polyester has lasted four to five days of daily wear or up to four sweaty runs (5.5+ total hours) before detectable odor, especially when aired out between uses.
- Safety
- Polygiene is certified skin-safe by Oeko-Tex and bluesign and does not disrupt skin microbiome.
- Care
- Wash inside out in cold water with mild detergent, avoid fabric softeners, and tumble dry low or air dry; high heat may reduce the Polygiene treatment's effectiveness.
- Running efficiency
- 4-inch inseam reduces leg swing weight and ensures stride freedom.
- Cooling
- 4-inch inseam boosts cooling via direct skin airflow.
- Hem stability
- 4-inch inseam anchors hem on thigh, preventing ride-up and chafing.
- Breathability
- Perforations, side vents, and 4-inch inseam accelerate sweat evaporation and heat release.
- Recycled performance
- 100% recycled polyester performs within 2-3% of virgin in wicking, dry time, and breathability.
- Chafe prevention
- Built-in microfibre brief and perforated shell prevent chafing by removing underwear seams, wicking moisture, and anchoring the hem.
- Odour control
- Polygiene permanently suppresses odour, stays effective for garment lifespan.
- Storage
- Built-in liner has no phone pocket; front zippered pockets are the intended phone storage.
- Environmental footprint
- Recycled polyester from bottles uses 45–85% less energy than virgin.
- Performance parity
- Recycled polyester wicks, dries, and breathes within 2–3% of virgin polyester, and it retains more breaking force after aging.
- Value
- At $69 CAD, this short undercuts Tracksmith Twilight Shorts with the same Polygiene by over 30%.
- Design
- 4-inch inseam, built-in liner, zippered pockets, and side vents deliver premium running short functionality.
- Brand story
- Exclusive Simons brand: designed in Canada, more features per dollar than Nike/UA.
- Color accuracy
- The Emerald/Kelly Green is expected to read as a bright, true emerald green rather than dark forest green, though natural-light shade can vary.
- Wash frequency
- Between runs, rinsing or airing out the shorts can often replace a full wash, saving wear on the garment.
Product record
- Title
- Perforated Stretch Short Length: 4"
- Brand
- I.FIV5
- Price
- 69 CAD
- Availability
- In stock
Buying Guide
1 comparison · 9 sourcesUses
Running shorts for warm-weather training
These soft, lightweight 4-inch shorts are designed for running, sitting at the waist and finishing at mid-thigh with a vented slit at the right hem. The adjustable drawstring waist helps with fit, and the right-side zip pocket holds small essentials on a run. The listing's Polygiene® technology is described as eliminating odour and preventing bacterial growth, though that is the brand's characterization rather than a confirmed user-observed result.[1,2,3,4]
Product comparison
Compared within this brand.
| Perforated Stretch Short Length: 4": Choose this if you want a lightweight 4-inch inseam running short: it is made of stretch recycled polyester (90% recycled polyester, 10% spandex) with fully perforated fabric, side vents, a built-in microfibre lining, and a drawcord-adjustable elastic waist. It also has zipped front pockets and Polygiene® technology that the listings describe as eliminating odour and preventing bacteria growth. It comes in sizes SMALL through X-LARGE in Black or Emerald/Kelly Green.[1,2] | Piped Stretch Short Without Built-In Brief Length: 4.5": Choose this if you want a short pair of gym shorts with a 4.5 inch inseam and prefer to wear your own underwear, since it has no built-in brief. It is made of lightweight, stretch recycled polyester with spandex, features Polygiene technology that eliminates odour and prevents bacteria growth, and has an elastic waist with an adjustable inner drawstring plus slit side-seam pockets. It comes in Black, Navy/Midnight Blue, and Burgundy in sizes small to X-large, with contrast piping and a reflective logo for a retro athletic look.[5,6] | Built-In Liner Stretch Jersey Short Length: 4.5": Choose this if you want a short pair of athletic shorts inspired by the demands of racquet sports, with a 4.5 inch inseam, full-stretch nylon-blend jersey (77% nylon, 23% spandex), and a built-in liner that extends below the outer hem. It adds practical details like slant front pockets, a zip back pocket, micro perforations at the crotch, an adjustable inner drawstring, and side vents at the hem, plus Polygiene technology that the retailer says eliminates odour and prevents bacteria growth. Note that the Navy/Midnight Blue colourway is listed only in SMALL and MEDIUM, with no LARGE variant shown.[7,8,9] |
Image Analysis
3 images- 01
Product
Black athletic shorts worn on a model, visible from the front at mid-thigh length with a straight hem and small outer side slit on at least one leg.
- Overall silhouetteStraight-cut athletic shorts that sit at the waist and extend to mid-thigh with a slightly relaxed fit through the thigh.
1 region
x 0.32 · y 0.45 · w 0.36 · h 0.19 (high) - Side hem slitSmall vertical outer slit at the side hem on the model's right leg (image left of center) creating a slight opening at the hem.
1 region
x 0.42 · y 0.55 · w 0.08 · h 0.08 (high) - Waistband appearanceWaistband area appears smooth and flat with no visible drawstring or exposed elastic details in this view.
1 region
x 0.34 · y 0.44 · w 0.30 · h 0.05 (medium) - Possible small mark near hemVery small light-colored mark or logo near the lower hem on the left side of the shorts as seen from the viewer; detail is small and not fully legible.Uncertain
1 region
x 0.56 · y 0.58 · w 0.04 · h 0.03 (low)
Other
Studio full-body front view of a standing male model against a plain light gray backdrop, with even front lighting and a soft shadow cast to the model's right.
- Shot compositionFull-body front-facing shot showing the model from head to toe, centered vertically with space above the head and below the feet.
- Background and lightingPlain light gray studio background with even diffuse lighting and a soft shadow of the model falling to the viewer's right.
- Model stylingModel wears a sleeveless light-gray top, mirrored wrap sunglasses, black socks, and multi-color athletic shoes; hands are placed behind the back.
- Image qualityHigh-resolution, well-lit studio photograph with no significant motion blur or cropping of the shorts region.
Colors
matte black· shorts#0D0D0E- Overall silhouetteStraight-cut athletic shorts that sit at the waist and extend to mid-thigh with a slightly relaxed fit through the thigh.
- 02
Product
Front and right-side view of black athletic shorts with an elastic waistband and visible drawstring, angled side seam with a zip pocket and a small vented slit at the right hem.
- Overall silhouetteShorts shown from upper thigh to waist with a straight hem and a relaxed fit; right-side hem has a small vertical slit.
1 region
x 0.05 · y 0.28 · w 0.90 · h 0.62 (high) - WaistbandElastic waistband with a visible stitched channel and an external drawstring emerging from the front center.
1 region
x 0.18 · y 0.14 · w 0.64 · h 0.12 (high) - Drawstring tipsPair of narrow flat drawstring cords with small tubular end caps, hanging down the front center.
1 region
x 0.26 · y 0.19 · w 0.18 · h 0.12 (high) - Right-side zip pocketDiagonal pocket opening on the right front with a small visible zipper pull near the top of the pocket opening.
1 region
x 0.66 · y 0.28 · w 0.20 · h 0.18 (high) - Right hem slitShort vertical slit at the outer edge of the right hem, creating a small vent where front and back panels separate.
1 region
x 0.82 · y 0.64 · w 0.12 · h 0.20 (high) - Fabric appearanceSmooth, uniform matte knit or woven fabric with no visible texture or pattern in the photographed area.
1 region
x 0.10 · y 0.32 · w 0.80 · h 0.50 (high) - Inner leg exposureModel's upper thighs visible below the hem, showing that the shorts finish well above the knee.
1 region
x 0.12 · y 0.76 · w 0.76 · h 0.20 (high)
Other
Studio product shot showing the lower torso of a model against a neutral light grey background; soft, even lighting with minimal shadows and the model wearing a light grey shirt.
- Shot compositionCropped midsection-to-thigh frame with the model facing slightly left of camera; focus is on the shorts.
- Background and lightingUniform light grey studio background with soft diffuse lighting and minimal shadows under the hem and between the legs.
- Model stylingModel wears a light grey top tucked slightly above the waistband; lower arms and upper thighs visible.
1 region
x 0.05 · y 0.02 · w 0.90 · h 0.28 (high)
Colors
matte black· main fabric#0D0D0Eblack· drawstring#0D0D0E- Overall silhouetteShorts shown from upper thigh to waist with a straight hem and a relaxed fit; right-side hem has a small vertical slit.
- 03
Product
Rear view of a pair of black athletic shorts worn by a model, showing an elasticated waistband, center back seam, side pockets, short side slits, and small perforation pattern near the left hem.
- WaistbandBlack elastic waistband with horizontal gathered stitching across the full width; waistband sits at model waist and is separate from the body fabric by a visible seam.
1 region
x 0.13 · y 0.19 · w 0.74 · h 0.10 (high) - Center back seamSingle vertical stitch seam running down the center of the rear panel from waistband to crotch area.
1 region
x 0.47 · y 0.28 · w 0.06 · h 0.44 (high) - Side pocketsIn-seam side pocket openings visible on both left and right hips; pocket openings follow the side seam contour.
2 regions
x 0.02 · y 0.34 · w 0.32 · h 0.40 (medium); x 0.66 · y 0.34 · w 0.32 · h 0.40 (medium) - Left hem perforationSmall patterned perforations forming a vertical panel near the left outer hem above the side slit.
1 region
x 0.01 · y 0.62 · w 0.14 · h 0.20 (high) - Side hem slitShort outward-facing slit at each side hem; left slit shows inner layer visible behind the opening.
2 regions
x 0.00 · y 0.72 · w 0.10 · h 0.18 (high); x 0.86 · y 0.70 · w 0.14 · h 0.20 (medium) - Right side tagSmall tonal rectangular tag attached to the right side seam near the waistband, print or logo on the tag is not legible.Partial
1 region
x 0.78 · y 0.35 · w 0.05 · h 0.08 (medium) - Fabric appearanceSmooth, matte black woven fabric with a slight drape and no visible texture other than small perforations on the left panel.
- Visible model contextLower back and upper thighs of a model wearing the shorts; portion of a light grey shirt tucked slightly above the waistband visible.
2 regions
x 0.00 · y 0.00 · w 1.00 · h 0.30 (high); x 0.22 · y 0.70 · w 0.56 · h 0.30 (high)
Other
Studio rear-view product shot cropped mid-torso to mid-thigh, neutral light grey background, soft even lighting with mild shadowing under the hem.
- Shot compositionCentered rear-facing crop showing shorts on a standing model from lower ribs to mid-thigh; image is vertically oriented.
- BackgroundUniform light grey background with no props or visible seams.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Lighting and shadowSoft, even studio lighting with a mild shadow under the hems and subtle highlights on the waistband and rear seam.
- Image qualityHigh resolution and sharp focus on the shorts; no motion blur.
Colors
matte black· main fabric#0D0C0E- WaistbandBlack elastic waistband with horizontal gathered stitching across the full width; waistband sits at model waist and is separate from the body fabric by a visible seam.
Variants
8 SKUs| SKU | Title | Price | Avail |
|---|---|---|---|
| 4610459 | Perforated Stretch Short Length: 4" - Black - Small | CA$69.00 | Yes |
| 4610460 | Perforated Stretch Short Length: 4" - Black - Medium | CA$69.00 | Yes |
| 4610461 | Perforated Stretch Short Length: 4" - Black - Large | CA$69.00 | Yes |
| 4610462 | Perforated Stretch Short Length: 4" - Black - X-Large | CA$69.00 | Yes |
| 4610463 | Perforated Stretch Short Length: 4" - Emerald/kelly Green - Small | CA$69.00 | Yes |
| 4610464 | Perforated Stretch Short Length: 4" - Emerald/kelly Green - Medium | CA$69.00 | Yes |
| 4610465 | Perforated Stretch Short Length: 4" - Emerald/kelly Green - Large | CA$69.00 | Yes |
| 4610466 | Perforated Stretch Short Length: 4" - Emerald/kelly Green - X-Large | CA$69.00 | Yes |