Hit the trail in the AFO-Vent Tank — this lightweight, 4-way stretch tech top is made from a micro-perforated, abrasion resistant fabric for extra-breathable, durable running comfort. Low-profile, mini-binding collar and armholes are strategically designed to accommodate a hydration vest or pack.
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Highlights
features
Lightweight yet tough
AFO-Vent is a durable, 4-way stretch nylon fabric that is abrasion resistant, retains its shape, resists odors, wicks moisture + dries quickly
Perforated venting
Micro-perforations enhance breathability
Minimal trims, pack compatible
Low-profile, mini-binding collar + armholes provide smooth, flat lying comfort to optimally accommodate hydration vests or packs
Smooth finish
Bonded hemline provides an anti-chafe, clean finish
Stay seen
Janji signature reflective logo on front chest + “watermark” reflectivity on back increase visibility in low light
materials + specs
AFO-Vent |
Garment made in Vietnam |
care instructions
Wash cold with like colors |
Heads up — AFO-Vent may feel stiffer than you're used to |
Fabric Callout

AFO-Vent
Lightweight yet tough trail gear made from 4-way stretch fabric with micro-perforations for extra-breathable running comfort.
SHOP ALL AFO VENTsustainability
The first rule to making something sustainable? Build it to last. This top is built to endure the rigors of serious wear. We made it out of our AFO-Vent fabric — a durable nylon that is lightweight yet tough, abrasion resistant, odor resistant and will retain its shape. All trims are minimal and low-profile to reduce weight, fuss and stress points.
Our AFO-Vent fabric is also bluesign® certified meaning it is free from harmful chemicals and is fabricated in a way that meets a high environmental standard.
Learn more about our sustainable initiatives here.





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15% lifetime discount. Priority access to all releases + limited run Janji gear. Exclusive Janji Collective Team Singlet.


Membership +
Exclusive JC Singlet
$50
Key member benefits:
- 15% lifetime discount.
- Priority access to all releases.
- Limited run Janji gear.
- Exclusive Janji Collective Team Singlet.
Membership +
Exclusive JC Singlet
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