As the owner of 16 pairs of Gelhalos starting with the Nimbus 15, I am again becoming increasingly frustrated with the design and production of 21. I feel like an old man in a pair of Hokas in these poorly designed ones shoes. 15 was by far the best model they produced, why change it and improve the design? There are two noticeable bulges on the arch of my heel, and they don't match the halo's name. Re-imagining the 15 with a reinforced toe and halo is the perfect shoe. Why doesn't ASICS listen to its customers?