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4" AFO-Vent Multi Short

Regular price €68,95
Unit price  per 

4" AFO-Vent Multi Short

M's 4" AFO-Vent Multi Short

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Heads up, this gear will ship in 6-10 weeks. Learn more about pre-orders.


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William wears size M and is 6'1" Athletic split-hem fit, Size Chart

The go-to short for unimpeded all-terrain running — the Janji AFO-Vent Multi Short balances a lightweight, barely-there feel with maximal storage for your longest adventures thanks to the extra-breathable, 4-way stretch, micro-perforated shell and multi-pocketed waistband to easily secure nutrition, headlamp, gloves, phone, keys and more Read more

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Trail-ready comfort
Made from a 4-way stretch nylon that is abrasion resistant, retains its shape, resists odors, wicks moisture and dries quickly

For your longest runs
Four drop-in waistband pockets with power mesh lining keep your items secure and bounce-free so that they feel unnoticeable in stride

Lightweight feel
A mesh brief liner maintains breathability and mid-hip side splits provide airflow and a full range of motion for the steepest climbs

Leave nothing behind
A Nite Ize® S-Biner MicroLock® clip is included in the left front pocket to secure keys

Chafe-resistant seams
Bonded hem seams provide an anti-chafe, clean finish

materials + specs

80% nylon, 20% elastane

Groundwork Knit (waistband)
68% nylon, 32% spandex

Power mesh lining (waistband)
100% polyester

Performance brief liner
94% polyester, 6% spandex

Garment made in Vietnam

146g / 5.1oz (M’s Medium)

Fabric Callout


Lightweight yet tough trail gear made from 4-way stretch fabric with micro-perforations for extra-breathable running comfort.



The first rule to making something sustainable? Build it to last. This short is built to endure the rigors of serious wear. We removed zippers, because they will inevitably fail. 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. We changed the drawcord to an infinity loop that will not get tugged out in the wash and we reinforced the pocket openings with 14 bar tacks.

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.

Customer Reviews

Based on 12 reviews
Martin C.
Best running shorts!

Unreal how comfortable, light, and well-made these shorts are. I've had a hard time finding the right running shorts for the past couple years and I have officially been won over. Order another pair as soon as these arrived just to have double.

Keagan Rowe
Best Shorts Hands Down

I was only set on Salomon and Compressport for comfort and performance before I tried these and I can happily say I have been converted. The performance, breathability, comfort of the inner, storage and design is faultless. A must-buy! Janji are my go-to going forward!

Phil Ault
Nice shorts but....

The price was fantastic, the amount of pockets is fabulous, the size of the pockets is tremendous, overall I am very pleased with the shorts. The only thing that prevents me from giving them 5 stars is the overall comfort. I have several pair of shorts from Janji and always the liner inside is just a bit uncomfortable. I'm not sure how to describe it but it just seems a bit lacking in the comfort zone. I would purchase them again and recommend them, but can't give them a 5 star pop.

Erich Wu
Needs to come in black

Huge improvement over the old 6" with the "infinity loop". Still the same amount of storage as the old shorts but the fit is slimmed down and the draw string is actually functional, which works perfectly for me. If you are between sizes, size up.

The split provides tons of ventilation and doesn't reveal the inner side of the thighs when in motion. Unfortunately, it takes away the everyday-ability that the 6" had or the current 7" counterpart has. That said, it is an amazing dedicated running short, one of the best Janji have produced. It just needs to come in black for the sweat that comes with a long day!

Great fit

I don't often opt for split shorts, but these really work for me as I like the coverage (length) and all the carry options for back country runs.


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