MEN'S R1 M Clifton 9 Best for: Fast training

Best for: Fast training

but with slightly different focuses:

The Cloudrunner offers a super-soft landing thanks to CloudTec® cushioning in ultralight Zero-Gravity foam

maintaining composure & not squealing in agony after leapfrogging full speed over a fire hydrant & accidentally landing on your padoobies

the Endorphin Elite 2 equips you with the confidence that no one in the field is better prepared or better equipped

MEN'S R1 M Clifton 9 Best for: Fast trainingThe R1 features a CPU outsole with an exceptional light weight of 8. 5 oz (US M9), but may produce noticeable noise on rainy days or on wooden floors. 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