Mount to Coast | T1 | Women's | Dune

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T1 Trail Running Shoes – TunedFit™ Precision, Lightweight Power & Rugged Durability

Conquer tough terrain with the T1 trail running shoes, built for endurance athletes who demand precision fit, durable materials, and maximum performance. Featuring our signature TUNEDFIT™ Dual Lacing System, you can fine-tune tension at the forefoot and midfoot independently—perfect for dialing in the ideal fit on the move. Paired with a wide toe box, this design allows for natural toe splay and full-foot engagement on long-distance runs.

Engineered for extreme durability, the T1’s high-performance woven upper is reinforced with aramid fibers—5x stronger than steel—making it one of the toughest trail shoes available. The anti-siphon knit tongue repels water while maintaining breathability and quick-dry performance in wet, muddy, or humid conditions.

At the core, our proprietary LightCELL™ midsole leverages supercritical foam technology to deliver 50% less weight than EVA and 45% more energy return, offering long-lasting rebound and cushioning that ultrarunners trust over any distance.

For unbeatable grip and agility, the Vibram® outsole combines three innovations:

• Megagrip rubber for unmatched traction in wet or dry conditions

• Litebase technology to reduce outsole weight by 30%

• Traction Lug micro-patterns for up to 25% more grip on uneven or technical terrain

Key Benefits:

• Fully adjustable dual-zone lacing system for a locked-in fit

• Wide toe box supports natural movement and long-distance comfort

• Reinforced upper with aramid fibers for extreme durability

• Supercritical LightCELL™ midsole for responsive cushioning and ultra-light performance

• Vibram® Megagrip outsole with Litebase and Traction Lug for superior grip and control

Whether you're racing ultras or logging high-mileage trail days, the T1 delivers the ultimate combination of fit, performance, and toughness for every stride.