On Cloudrunner 2 vs Nike Structure 26

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.