Changes

* The Hokas provide remarkable protection for the soles of your feet. This protection is most noticeable on trails, where you can ignore far more of the stones and bumps. I've found this protection to be wonderful, as it has allowed me to run trails again, which would not otherwise be possible. Even on smoother surfaces, the Hokas can protect your soles, which is a factor over longer distances.

* The Hokas have far less of a drop between the heel and forefoot than a traditional shoe. The Hokas have claim 3-4.5mm of drop, but measurements suggest it's more like 6mm. Compared with a traditional running shoe like the Asics GT 2170 which has 11mm of drop, the Hokas seem quite flat. I've found that running in Hokas is a little like running barefoot on a padded track, which is quite impressive.

* The thick sole tapers from the forefoot to the front of the shoe, creating an effect that encourages a good forward lean and toe off. I've been surprised how much this has helped my biomechanics.

* There are many reports that the Hokas reduce muscle fatigue, but I found no obvious difference in muscular soreness between the Hokas and the [[Modified Nike Free]]. Opinions of other runners going to Hokas from minimalist shoes varies, with some seeing a benefit and others not.