Brooks Ghost 17 vs On Cloud X 4

The Ghost 17 is a cushioned neutral daily road runner; the Cloud X 4 is a flexible cross-training shoe. Buy the Ghost for long runs, walks and all-day comfort, especially if you need wide or narrow widths. Buy the Cloud X 4 for gym work, HIIT and lateral movement, where its lighter build and Speedboard help. Reviewers praise the Ghost's cushioning but some say the redesigned upper runs narrow and pinches; the Cloud X 4 has few ratings, so owner feedback is thin.

• Choose the Brooks Ghost 17 if you run or walk mostly on roads and want soft, dependable cushioning in a width that fits you.
• Choose the On Cloud X 4 if your training is gym-based and you want a light, flexible shoe for lifting, jumping and side-to-side work.