361 KAIROS 4 WOMEN'S Shoe size:4.5 and track your sleep for

and track your sleep for optimal recovery

the Apex 2 lets you change things up with ease thanks to built-in activity profiles for running

the medial post has been redesigned to wrap the heel

A nylon-blend Speedboard® encourages momentum and powerful take-offs

we’ve reimagined the orientation of our multi-directional lugs to ensure the best all-terrain ride yet

361 KAIROS 4 WOMEN'S Shoe size:4.5 and track your sleep forThe new 361 KAIROS 4 features a re engineered midsole geometry that supports your foot from heel to toe. With added platform height and width, this enhanced geometry provides medial and lateral stability, creating a sensation of cushioned guidance from first contact to toe off. The result is moderate support that helps align your gait for a smoother, more efficient run.