Built for the long miles and the terrain that tests them, the Men’s T1 is engineered to deliver consistent performance from the first climb to the final descent. Designed for trail runners and endurance athletes, it pairs advanced materials with a highly adaptable fit—creating a shoe that feels responsive, secure, and efficient across changing conditions. Recognized with the APMA Seal of Acceptance, it’s also proven to support overall foot health through sustained use.
At the core of the T1 is a refined fit system that adapts in motion. The upgraded TUNEDFIT™ Dual Lacing System allows independent adjustment of the forefoot and midfoot, giving you precise control over lockdown and comfort. Whether navigating technical terrain or settling into a steady rhythm, the fit remains dialed—allowing natural toe splay and reducing fatigue over long distances.
Underfoot, the experience is defined by lightweight energy and reliable grip. The LightCELL™ midsole, engineered with supercritical foaming, delivers high rebound at a fraction of the weight of traditional materials—helping maintain momentum mile after mile. Paired with a Vibram® outsole system featuring Megagrip, Litebase, and Traction Lug technologies, the T1 ensures confident footing across wet, dry, and uneven surfaces, keeping you connected and in control wherever the trail leads.
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