Micro-perforated shorts with built-in bike short Length: 13 cm (5") product image (primary)
Black outer running shorts with an elastic drawstring waistband and a visible fitted inner bike-short layer; a small vertical white logo appears on the outer right hem.

INNER SELF

Micro-Perforated Shorts With Built-In Bike Short Length: 13 Cm (5")

CA$90.00CAD
In Stock

These are lightweight running shorts with a built-in microfibre bike short liner, designed for athletic activities such as running and training. The outer short is made from an ultra-lightweight micro-perforated stretch nylon-blend with Airgrid technology for quick-dry, breathable, and moisture-wicking performance, weighing 95 GSM. Key features include a built-in bike short with cell phone pockets, silicone thigh trim, drawcord elastic waist, zip back pocket, anti-chafing heat-sealed edging, reflective logo, side vents, and a 13 cm (5") inseam.

Material
Stretch nylon-blend
Style
athleisure, activewear, performance, technical
Category
Apparel & Accessories > Clothing > Activewear > Bicycle Activewear > Bicycle Shorts & Briefs

Specifications

Ultra-lightweight performance shorts with a built-in bike short liner, quick-dry fabric, and secure features for active wear.

Airgrid™ quick-dry technology, built-in microfibre bike short with cell phone pockets, zip back pocket, silicone trim for hold, anti-chafing edging, reflective logo, side vents, and ultra-light 95 GSM construction.

Material
Stretch nylon-blend
Style
athleisure, activewear, performance, technical
Occasion
workout, travel, beach-day
Gender
male
Age Group
adult
Condition
new
Category
Apparel & Accessories > Clothing > Activewear > Bicycle Activewear > Bicycle Shorts & Briefs

Additional Attributes

  • Ultra-lightweight micro-perforated stretch nylon-blend fabric
  • Quick-dry, breathable, and moisture-wicking with Airgrid™ technology
  • Built-in microfibre bike short with patch pockets for cell phone
  • Hidden thin silicone trim along thighs for secure hold
  • Drawcord-adjustable elastic waist
  • Zip back pocket
  • Anti-chafing heat-sealed edging
  • Ultra-light 95 GSM weight
  • Reflective logo for visibility
  • Side vents for ventilation
  • 13 cm (5") inseam length

Product Insights

The INNER SELF Micro-Perforated Shorts with 13cm built-in bike short (2.0 redesign) promise chafe-free comfort and lasting shape: bonded, heat-sealed hems on shell and liner eliminate seam ridges that rub or fray, a 74% nylon/26% spandex shell holds 95–98% stretch recovery wash after wash, and silicone grip dots on the liner stop ride-up without added compression, all in an ultralight AirGrid shell (95 gsm). Storage splits across dual side pockets, a gel slot, a rear zip pocket, and open liner patch pockets—but while the rear pocket secures valuables, the liner pocket won't close around a large iPhone, so a bouncing phone may need the zip pocket, and side/gel storage stays reachable rather than hidden like the Tracksmith Session's interior approach. The tradeoffs: sizing stops at XL (competitors reach XXXL), and care is specific—machine wash cold, hang dry, no bleach or tumble drying. At 90 CAD, it's a refined, lightweight short for those who fit the size range and accept open liner pockets for the sake of bond-and-grip stability.

Verified claims

Phone pocket
A verified reviewer says the liner fits a large iPhone but does not close; use the rear zip pocket if the phone cannot bounce loose.
Carry layout
Carry splits across side, gel, zip, and liner phone pockets; Tracksmith Session offers one rear zip plus three drop-ins.
Version
The current short is the 2.0 redesign released June 15, 2026, with new shell and liner, bonded hems, silicone grip and upgraded drawcord.
Anti-chafing
Bonded, heat-sealed hems on shell and liner leave no seam ridge to rub or fray the inner thigh.
Liner stability
Silicone grip dots on the 2.0 liner stop ride-up without added compression.
Size range
Sizes stop at X-Large; MUSCLE REPUBLIC COMPOUND INBUILT SHORTS 5-inch - LAVA SMOKE runs to XXXL.
Shape recovery
74% nylon / 26% spandex holds 95-98% stretch recovery wash after wash.
Seam durability
Bonded hems on shell and liner stay flat, without a ridge to fray or pill.
Drawcord
2.0 drawcord holds tie under movement and fine-tunes liner fit.
Weight
AirGrid shell at 95 gsm and the 2XU Aero lined short shell at 105 gsm differ by 10 gsm - same ultralight class.
Pockets
Side pockets and a zipped back pocket keep storage reachable, while the Tracksmith Session Shorts hide it inside.
Construction
Current 2.0 build bonds shell and liner hems and adds silicone grip dots in the liner.
Fabric recovery
AirGrid's nylon-spandex knit sits in the 95–98% stretch-recovery class.
Size ceiling
Only sizes S–XL are offered; MUSCLE REPUBLIC Compound reaches XXXL.
Storage layout
Gear-carry splits between dual side pockets and a dedicated gel slot on the shell.
Pocket security
Only the rear outer pocket zips; liner patch pockets stay open.
Care
Machine wash cold, hang dry, no bleach, no tumble drying.
Wash durability
Bonded hems avoid wash fraying; the high-recovery nylon-spandex shell resists bagging.
Stretch recovery
74% nylon / 26% spandex shell retains 95–98% recovery over repeated wear and wash cycles.

Product record

Title
Micro-Perforated Shorts With Built-In Bike Short Length: 13 Cm (5")
Brand
INNER SELF
Price
90 CAD
Availability
In stock

Image Analysis

3 images
Micro-perforated shorts with built-in bike short Length: 13 cm (5") product image (primary)
01

Product

Black outer running shorts with an elastic drawstring waistband and a visible fitted inner bike-short layer; a small vertical white logo appears on the outer right hem.

  • Outer shorts silhouetteRelaxed A-line outer shorts with a short inseam and a slight side vent at each hem; the outer layer sits above the fitted inner layer so the inner layer is visible below the outer hem.
    1 regionx 0.23 · y 0.17 · w 0.54 · h 0.24 (high)
  • Waistband and drawstringElastic waistband with a center front drawstring whose tips are visible and hang down slightly over the front of the shorts.
    1 regionx 0.34 · y 0.12 · w 0.32 · h 0.10 (high)
  • Inner bike-short layerFitted inner bike-short layer in black that extends a short distance below the outer short hem and fits snugly against the upper thigh.
    1 regionx 0.30 · y 0.28 · w 0.40 · h 0.10 (high)
  • Outer fabric textureOuter fabric shows a fine, uniform textured surface consistent with a micro-perforated or textured synthetic knit visible as a subtle dot pattern across the front panels.Partial
    1 regionx 0.27 · y 0.16 · w 0.46 · h 0.20 (medium)
  • Right hem logoSmall vertical white logo text reading 'INNER SELF' printed near the outer right hem of the shorts.
    1 regionx 0.57 · y 0.29 · w 0.05 · h 0.11 (high)

Other

Studio product shot showing a model wearing the shorts; visible sneakers and socks, plain light gray background, even lighting with soft shadows.

  • Shot compositionFrontal studio crop from mid-torso to feet showing model standing with legs slightly apart; neutral light gray seamless background and soft shadow under feet.
  • Visible footwearCream and black athletic sneakers visible on both feet; left shoe turned slightly outward, right shoe facing forward.
    2 regionsx 0.05 · y 0.74 · w 0.36 · h 0.22 (high); x 0.53 · y 0.72 · w 0.38 · h 0.24 (high)
  • Socks branding textadidas
    1 regionx 0.60 · y 0.70 · w 0.07 · h 0.07 (high)
  • Legs and hands visibleModel lower torso, both bare legs from mid-thigh down, and both hands partially visible at the sides are included in the frame.
    1 regionx 0.18 · y 0.14 · w 0.64 · h 0.70 (high)
  • Lighting and shadowSoft, even frontal lighting with minimal harsh shadows and a faint cast shadow beneath and slightly behind the shoes.

Colors

matte black· outer shorts#0E0C0Edeep black· inner bike shorts#0E0C0Ebright white· logo text on outer right hem
Micro-perforated shorts with built-in bike short Length: 13 cm (5") product image 2
02

Product

Rear view of black running shorts with a separate, tighter black inner bike-short layer extending below the outer hem. Elastic waistband with a horizontal rear pocket seam centered across the back.

  • Outer short shapeLoose-fit outer short with straight rear hem and short side slits at each outer seam; hem falls several centimeters above the top of the inner layer.
    1 regionx 0.20 · y 0.18 · w 0.60 · h 0.26 (high)
  • Inner bike short layerTight-fitting inner bike short visible below the outer short hem, finishing mid-thigh and made of a smoother, slightly shinier black fabric.
    1 regionx 0.29 · y 0.36 · w 0.42 · h 0.12 (high)
  • Waistband and rear pocket seamElasticized waistband with a horizontal seam across the rear forming a rectangular pocket opening centered on the back waistband.
    1 regionx 0.28 · y 0.14 · w 0.44 · h 0.08 (high)
  • Fabric textureOuter short fabric shows a fine, uniform textured surface consistent with micro-perforation or micro-grid; texture is subtle but visible across the outer panels.Partial
    1 regionx 0.22 · y 0.20 · w 0.56 · h 0.20 (medium)
  • Center back seamVertical center-back seam runs from waistband to hem, visible as a subtle stitched line.
    1 regionx 0.47 · y 0.16 · w 0.06 · h 0.28 (high)

Other

Studio rear-shot on a neutral light-gray background showing a model from waist down wearing socks and running shoes; even diffuse lighting with soft shadows on the floor.

  • Shot compositionRear-facing full-length crop from waist to shoes centered in frame on a plain light-gray background.
  • Model legs visibleModel lower legs visible, providing scale and showing shorts in use; skin tone and calf musculature visible.
    1 regionx 0.22 · y 0.36 · w 0.56 · h 0.48 (high)
  • Socks detailWhite crew socks with a small dark swoosh-like mark near the upper front of each sock.
    2 regionsx 0.34 · y 0.66 · w 0.10 · h 0.14 (high); x 0.56 · y 0.66 · w 0.10 · h 0.14 (high)
  • Shoe branding textadidas
    1 regionx 0.56 · y 0.78 · w 0.14 · h 0.10 (high)
  • Lighting and shadowEven, soft studio lighting producing faint shadow under the model's feet and minimal specular highlights on the shoe soles.

Colors

dark charcoal black· outer shorts#211E25true black· inner bike short
Micro-perforated shorts with built-in bike short Length: 13 cm (5") product image 3
03

Product

Men's athletic outer shorts in a dark solid color with an elastic waistband, exposed drawstring, short inseam and a slightly relaxed, straight hem; worn over a darker inner layer that is visible at the leg openings.

  • Outer short silhouetteRectangular, relaxed-fit outer shorts with a short inseam and straight hem that sit above mid-thigh; outer shorts appear slightly loose over the inner layer.
    1 regionx 0.33 · y 0.47 · w 0.32 · h 0.19 (high)
  • Waistband and drawstringElastic waistband with a center-front exposed drawstring that ties or hangs down slightly over the front of the shorts.
    1 regionx 0.42 · y 0.45 · w 0.16 · h 0.06 (high)
  • Built-in inner layer visibleDarker inner short layer is visible extending slightly below the outer short hem at both legs, forming a two-layer appearance.
    2 regionsx 0.36 · y 0.58 · w 0.28 · h 0.06 (high); x 0.60 · y 0.58 · w 0.10 · h 0.06 (medium)
  • Fabric surfaceOuter shorts show a smooth matte finish with a subtle fine texture across the front panels; texture appearance is mildly uneven under lighting.Uncertain
    1 regionx 0.36 · y 0.49 · w 0.28 · h 0.13 (medium)
  • Side hem detailSmall vertical reflective or woven tab is visible on the outer right side hem (viewer left) near the seam.
    1 regionx 0.60 · y 0.56 · w 0.03 · h 0.05 (medium)

Other

Studio lifestyle shot of a model walking against a plain light gray background; even soft lighting with minimal shadowing and slight shadow on the floor ahead of the legs.

  • Model pose and cropFull-body view of a male model captured mid-stride with left leg forward and right leg back; image cropped with head near the top edge and feet visible near the bottom edge.
  • Other garments and accessoriesModel wears a long-sleeve dark top, white crew socks and two-tone running shoes, and sunglasses with earbuds; these items are props in the scene and not described as product packaging.
  • Background and lightingPlain light gray seamless background with soft, even studio lighting producing minimal harsh shadows and a faint floor shadow ahead of the model's feet.
  • Image qualityHigh-resolution, well-focused image with no obvious motion blur and natural color rendering.

Colors

black· outer shorts#110D0Every dark charcoal· built-in inner short#221B1D

Brand PDP Lookup

Variants

8 SKUs
All variants of Micro-Perforated Shorts With Built-In Bike Short Length: 13 Cm (5")
SKUTitlePriceAvail
4588392Micro-Perforated Shorts With Built-In Bike Short Length: 13 Cm (5") - Black - SmallCA$90.00Yes
4588393Micro-Perforated Shorts With Built-In Bike Short Length: 13 Cm (5") - Black - MediumCA$90.00Yes
4588394Micro-Perforated Shorts With Built-In Bike Short Length: 13 Cm (5") - Black - LargeCA$90.00Yes
4588395Micro-Perforated Shorts With Built-In Bike Short Length: 13 Cm (5") - Black - X-LargeCA$90.00Yes
4588396Micro-Perforated Shorts With Built-In Bike Short Length: 13 Cm (5") - Ivory/cream Beige - SmallCA$90.00Yes
4588397Micro-Perforated Shorts With Built-In Bike Short Length: 13 Cm (5") - Ivory/cream Beige - MediumCA$90.00Yes
4588398Micro-Perforated Shorts With Built-In Bike Short Length: 13 Cm (5") - Ivory/cream Beige - LargeCA$90.00Yes
4588399Micro-Perforated Shorts With Built-In Bike Short Length: 13 Cm (5") - Ivory/cream Beige - X-LargeCA$90.00Yes

Documents & Data

Provenance

Merchant Link
https://www.simons.ca/en/men-sports-clothes/pants-shorts/sports-shorts/micro-perforated-shorts-with-built-in-bike-short-length-13-cm-5--22943-2604?colourId=0
Updated