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.
Changelog
- Updated Mar 25, 2026: We've converted this review to Test Bench 0.10, adding a new set of fit tests to the Design section and an overall fit performance usage. Check out the details in our changelog.
- Updated Jan 27, 2026: Review published.
- Updated Jan 14, 2026: Early access published.
- Updated Jul 18, 2025: Our testers have started testing this product.
- Updated Jun 23, 2025: The product has arrived in our lab, and our testers will start evaluating it soon.
- Updated Jun 19, 2025: We've purchased the product and are waiting for it to arrive in our lab.
We've bought and tested more than 250 running shoes. Every pair purchased with our own money, never supplied or sponsored by brands. Our data-driven tests are designed to go beyond marketing claims, and since every shoe goes through the exact same methodology, you can directly compare results to find the right pair for your needs.
Test Results
Energy Return
Cushioning
Lateral Stability
True To Size
Popular Running Shoe Comparisons
The Nike Structure 26 and On Cloudrunner 2 are stability trainers that target slightly different but overlapping areas of the foot. The primary stability features in the Cloudrunner 2 are focused on the heel, including a stiff heel clip, and mild sidewalls in the rearfoot. The Structure 26 also has a (more pronounced) lateral sidewall close to the heel, but the support on the medial side extends further into the midfoot than the Cloudrunner 2. The Cloudrunner 2 is somewhat lighter and better cushioned, but has much worse energy return than the Structure 26.