We've tested these running shoes to expand our database and allow users to compare results to help with their buying decisions. We don't expect to write a full review, but if you have any questions about this product, please let us know!
Our Verdict
Performance Usages
Changelog
- Updated Nov 11, 2025: Review published.
- Updated May 13, 2025: Our testers have started testing this product.
- Updated Apr 18, 2025: The product has arrived in our lab, and our testers will start evaluating it soon.
- Updated Apr 02, 2025: We've purchased the product and are waiting for it to arrive in our lab.
Popular Running Shoe Comparisons
The ASICS S4+ YOGIRI and On Cloudboom Max are both racing shoes geared toward 4-hour marathoners, but each makes slightly different adjustments that move them from the front to the middle of the pack. The S4+ YOGIRI still has a very rigid carbon plate and the streamlined profile of a top-tier racing shoe, but a less pronounced rocker. The Cloudboom Max, meanwhile, features an aggressive rocker, a plastic-plated midsole, and a very wide base that adds stability but also considerable extra weight. For intermediate marathoners who are concerned about their form or worried about instability, the Cloudboom Max is the more solid option. For marathoners who are confident in their form and want the relatively lightweight feel of a super shoe, the S4+ YOGIRI is a livelier option for achieving a sub-4-hour finish.
We buy and test running shoes with a very data-oriented approach. While we're just getting started, our methodology already has dozens of tests to help you make the right purchasing decision for your needs. Not only do we use high-end equipment to gather objective data, but we also order multiple sizes of the same shoes for team members to be able to log in miles. This real-world testing is done at various paces and conditions, and with different types of workouts, to cover all the bases. This allows us to verify our results and ensure they align with what you might feel with a specific pair.
Test Results
