Recycled Materials
Radical AirFlow is a wildly ambitious fabric centered on cranking up the A/C. Built to maximise the Radical AirFlow innovation, the long-sleeve, race-ready top is designed to allow more air to flow directly to your skin as you push pace. Worn and tested by elite ACG Trail -Running athletes, Radical AirFlow produced peak results. Your turn to feel the chill.
ACG Radical AirFlow NXT
REVOLUTIONARY INNOVATION FOR ATHLETES IN MOTION.
Radical AirFlow is a wildly ambitious fabric centered on cranking up the A/C. Built to maximise the Radical AirFlow innovation, the long-sleeve, race-ready top is designed to allow more air to flow directly to your skin as you push pace. Worn and tested by elite ACG Trail -Running athletes, Radical AirFlow produced peak results. Your turn to feel the chill.
Radical AirFlow features an extremely breathable, open-hole construction to help channel more airflow directly to your skin for rapid sweat evaporation while you move. Engineered air ducts are designed to accelerate airflow to help maximise your body's natural cooling mechanisms.
Ultra-versatile and built for superior mobility and cooling, the soft, open-hole knit fabric throughout the garment features engineered air ducts in high-heat, high-chafe zones—designed to help you stay cool and comfy for all the miles ahead.
As one of the largest field test initiatives in Nike Running history, members of the All Conditions Racing Department (ACRD) tested the prototype throughout the 2025 elite season. Nike designers tracked feedback from in-race and lab testing to refine the garment. Elite trail runner and ACRD athlete, Caleb Olson wore his prototype en route to winning a grueling 2025 100-mile endurance run, clocking the second-fastest course time in the race's history.
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4.5 stars
String Vest
rossjulie20
Ok so it looks like a ‘Sam Smith’ knock off(as a friend said to me after I showed him the picture) BUT put it on very light, the cut out are amazing I sweet a lot at my elbow joint so no discomfort at all. Was raining that day really didn’t feel it. I mean so good I knocked out a 5k pb first time in ages might have been the top
Radical for sure!
Lee217832777
High quality stitching and materials.. similar to grandma’s table side doilies, It performs well you can literally feel air flowing! Unfortunately, I ordered the wrong size so I didn’t get to test it out ☹️
Ridiculous
Michael237713564
Weird, ugly concept that doesn’t do me any good; I’m better off with a cutoff T or shirtless. The price is crazy work/terrible value since it doesn’t improve anything for me…only makes me self-conscious & an easy target for jokes.
ACG Radical AirFlow NXT
Designed For
Engineered To
Ventilation To
Engineered air ducts that accelerate airflow to the skin so it feels like a windstorm strapped to your torso.
From Nike Sports Research Lab climate chambers to podium finishes. 50 elite athletes, 1,000 hours of suffer-festing. Measured against all the what-ifs.
Ventilation at arm bend and under arm. Cropped waist for belt accessibility. Sleeve length optimised for watch visibility.
Caleb Olson
ACG Athlete, 2025 Western States 100 champion