Nike ACG launches Radical AirFlow gear for summer heat waves

Nike ACG put Radical AirFlow on retail shelves on July 2, and the collection’s real pitch is not camouflage, cargo pockets or a hard-edged trail silhouette. It is air. Short-sleeve tops, long-sleeve tops, tanks and a Fly Cap now sit on Nike’s site as summer heat presses harder on outdoor dressing, with prices ranging from $65 for the cap to $150 for the long-sleeve top.

That pricing puts Radical AirFlow squarely in premium performance territory, but Nike is selling more than another technical layer. The brand says the line uses a wildly breathable, open-hole construction with engineered air ducts in high-heat, high-chafe zones to move air directly to skin and speed sweat evaporation. In plain terms, the garment is built to turn ventilation into the main feature, not a finishing touch.

The strongest case for the collection is that Nike did not spring it on runners cold. Radical AirFlow was worn and tested by elite ACG trail athletes before retail, and Caleb Olson wore a prototype at the 2025 Western States 100-Mile Endurance Run, where he posted the second-fastest course time in the race’s history. Nike later formalized that athlete pipeline through the All Conditions Racing Department, a roster of 22 trail athletes from eight countries and five U.S. states designed to feed future product development.

That is where the collection starts to feel less like simple novelty and more like a refined answer to a hotter, more punishing season. Nike says athlete feedback led to specific changes, including cutouts near the elbows and a crop-top silhouette that makes room for watches and belts, while the hottest-performing version works best with minimal layers underneath. Those details matter because they show the brand chasing practical mobility as much as comfort.

Still, Radical AirFlow also reads as part of a longer Nike story. The company traces the idea back through earlier mesh and Dri-FIT innovations, folding decades of airflow-focused apparel into a summer 2026 rollout that extends a concept first introduced in the summer 2025 trail-running season. Nike is pushing ACG more explicitly as an outdoor-performance brand built around trail running, hiking and exploration, and Radical AirFlow is the clearest expression yet of that shift. The question is whether summer techwear is entering a new era of smarter ventilation or just getting a familiar performance idea in a sharper, more climate-conscious package.