Second Skin Ribbed Running Short Length: 8.25" (21 Cm)

Verified claims

Odor control

Polygiene silver-based odor control is permanent and integrated, at $39.95.

Fabric quality

Nylon-spandex ribbed fabric retains shape with under 2% deformation after 100 cycles, at $39.95.

Zip pocket

Hidden zip pocket fits keys or some phones, a feature of $90 trail shorts, at $39.95.

Chafe protection

Built-in micro-perforated underpant and 8.25-in inseam prevent chafing, at $39.95.

Fit

Ribbed knit's stretch, recovery, and non-curling edges prevent ride-up and chafing.

Comfort

Ribbed knit's texture and cooling wicking enhance comfort against skin.

Inseam length

8.25-inch inseam exceeds the 7-inch threshold identified for chafe protection.

Underpant

Built-in micro-perforated underpant reduces chafing during long runs.

Knit stability

Ribbed knit resists curling and ride-up to reduce chafing points.

Ventilation

Micro-perforations wick sweat vapor to reduce chafing and odor.

Value

$39.95 sale price delivers 2-in-1 support and a hidden pocket, surpassing budget mesh-lined shorts.

Stretch recovery

Nylon-blend fabric deforms less than 2% after 100 stretch cycles, with snap-back recovery.

Abrasion resistance

Nylon-blend fabric achieves 25,000–80,000 Martindale cycles versus polyester's 15,000–20,000.

Moisture management

Nylon-blend fibers actively wick moisture and provide a cooling effect during runs.

Handfeel

Nylon-blend fabric has a smooth, silky, cool-to-the-touch surface.

Environmental sourcing

Silver chloride from recycled silver reduces the need for newly mined silver.

Freshness

Shorts stay fresh-smelling for multiple runs without washing.

Polygiene lifetime

Polygiene treatment stays active for the lifetime of the shorts.

Sustainability

Polygiene uses recycled silver, adding an eco-friendly aspect.

Hidden pocket

Rare under $50, its zippered pocket matches premium trail shorts and replaces a belt for keys/cards.

Shape retention

Ribbed knit stretches and snaps back; edges don't curl, hems lie flat.

Durability

Polygiene treatment bonded into fibers; odor control effective for garment's lifetime.

Safety

Polygiene is non-nano, non-irritating, and microbiome-safe for prolonged wear.

Product record

Title

Second Skin Ribbed Running Short Length: 8.25" (21 Cm)

Brand

I.FIV5

Price

79 CAD

Availability

In stock

Ribbed texture and second-skin fit

• Rib knit fabric does not curl at the cut edges, a common frustration with flat jerseys, so the short's hems and seams lie flat against the skin — this reduces chafing points and maintains a clean, athletic finish even after repeated laundering.
• The ribbed construction gives the nylon-blend jersey a tactile, substantial feel that belies its light weight — the alternating ridges add visual depth and a soft, almost velour-like hand, making the short feel more premium and more like a second skin than a paper-thin running liner.
• The ribbed knit delivers substantial width-wise stretch with exceptional snap-back recovery, while its minimal vertical stretch prevents the short from riding up — the fabric expands laterally with each stride then instantly returns to shape without sagging, keeping the short anchored at the waist and hem for a secure, non-slip fit that earns the 'second skin' label.

8.25-inch inseam: coverage and mobility trade-offs

• Running-guidance from ASICS pinpoints longer shorts as a primary defense against inner-thigh chafing because the fabric physically separates skin surfaces during the stride — at 8.25 inches, this short extends well past the typical friction zone, adding a mechanical layer of protection that a standard 5-inch split short lacks.
• At 8.25 inches, these shorts extend beyond the 7-inch inseam that running guides associate with trail protection and taller frames, delivering the extra coverage needed to shield thighs from brush and friction without tipping into the 9-inch 'traditional gym short' territory.

How Polygiene odor control works

• Polygiene is explicitly a non-nano silver treatment, so there is no risk of nanoparticle shedding during wear or laundering, while it still provides a full antimicrobial surface effect.
• Polygiene has a healthcare background and has passed extensive dermal sensitivity testing; it operates only at the fabric surface and does not leach onto skin or disrupt the body’s natural bacterial balance, making it gentle enough for the close-contact liner of a running short.
• The active silver chloride in Polygiene is produced from recycled silver, so the odor-control chemistry is a second life use of existing material rather than a newly mined resource.
• Through the oligodynamic effect, Polygiene silver ions bind to bacterial cell membrane proteins and DNA at concentrations as low as 0.01 mg/L, actively suppressing odor-causing bacteria rather than simply masking their smell — a real antimicrobial mechanism that stays active long after application.
• Polygiene holds both bluesign approval and Oeko-Tex Eco-Passport certification, which means every aspect of its production — from chemical formulation to factory application — meets rigorous limits on harmful substances and environmental impact, a distinction that few sportswear odor control treatments carry.
• Polygiene is a silver chloride salt treatment applied during the textile finishing stage and integrated directly into the fibers, making the antimicrobial effect a permanent characteristic of the shorts that will not degrade or wash out over the garment’s lifetime.

Benefits of a micro-perforated inner brief

• The micro-perforated underpant ventilates the groin area, carrying away sweat vapor that would otherwise create a humid breeding ground for bacteria, while the permanent Polygiene® treatment inhibits the growth of any remaining odor-causing microbes — together providing a freshness window that stretches across multiple workouts before a wash is required.

Nylon blend performance versus standard polyester

• Laboratory stretch-cycle testing shows an 80/20 nylon/spandex blend retains its shape with under 2% permanent deformation after 100 cycles, while a 92/8 polyester/spandex blend hits 4–6% and pure polyester reaches 10–12% — so the short's nylon-rich blend keeps its compressive, supportive fit through months of washes and high-intensity movement without sagging.
• Martindale abrasion testing places nylon at 25,000–80,000+ cycles versus polyester's 15,000–20,000 cycles, meaning the fabric resists pilling and wear-through from pack straps, trail brush, and repeated friction far better — for a runner who logs miles on mixed terrain or carries a hydration vest, this durability extends the short's useful life noticeably.
• Nylon fibers naturally present a smoother, glossier, and silkier surface than the drier, sometimes plastic-like feel of polyester, giving the short a more luxurious drape and a cool-to-the-touch sensation that distinguishes it from typical budget running shorts.
• Raw nylon commands a 20–30% price premium over polyester, so its presence in a stylistically minded $79 short (regular price) indicates the brand is spending on material comfort and longevity rather than hitting the lowest possible price — a signal to the runner that the garment was built to feel good and last, not just to sell at a discount.
• Nylon's standard moisture regain of 4–4.5% versus polyester's 0.4% means it actively pulls sweat into the fiber, and nylon's high thermal conductivity rapidly draws heat away from the skin, creating a contact-cooling sensation — for warm-weather runs, this makes the short feel cooler at the start and less clammy than a pure polyester short until sweat volume overwhelms the fiber's capacity.