Hit the trail in the AFO-Vent Tee — this lightweight, 4-way stretch tech top is made from a micro-perforated, abrasion resistant fabric for extra-breathable, durable running comfort. Raglan sleeves strategically remove seams from the top of the shoulder to optimally accommodate hydration vests or packs.
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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
Raglan sleeve design, pack compatible
Strategically removes seams from the top of the shoulder for optimal comfort with a hydration vest or pack
Unhindered movement
Underarm gusset provides fuller range of motion
Minimal trims
Low-profile, mini-binding collar for smooth, lightweight comfort
Smooth finish
Bonded sleeve hems + hemline provide an anti-chafe, clean finish
Hang it up
An ultralight nylon hang loop is integrated into the back neck for easy hanging
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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