WOMEN'S R1 W Ghost 17 " and transitions are smooth

" and transitions are smooth

Flex grooves for smooth

80 mg potassium

The first ALTRA shoe inspired by and developed with an ALTRA athlete

WOMEN'S R1 W Ghost 17 " and transitions are smoothThe 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