MEN'S R1

The original, record-breaking road ultra shoe. Featuring LightCELL and ZeroSag cushioning for effeciency and comfort, TUNDEDFIT Dual Lacing System for on-the-fly adapability, and a CPU outsole for durability that matches the demands of the world's best ultrarunners. Activity: Road Running Best for: Races of 100 km and above, multi-day races Stack Height: Heel 35 mm, Forefoot 27 mm Off-set: 8mm Weight: 8.5 oz Key Features TUNEDFIT Dual Lacing System for separate lace adjustment Dual-zone ZeroSag midsole inserts with little degradation during long runs LightCELL midsole base featuring excellent lightness and bounce GOFLOW midsole geometry to guide your stride Double-layered jacquard upper with 40% recycled polyester