Ultra 100

I don't know if the Dynafit Ultra 100 has changed in the last couple years. I had a pair 3 years ago, they had the Pomoca outsole. Most of my shoes are pretty minimal, I love Nnormal Kjerags and Merrell Long Sky. The Dynafit felt heavy and unstable to me. I sized up 1/2 size (US), it was still very low volume for the toes. It was a pretty comfortable shoe, but too heavy and slow for smooth trails, too thick and unstable for technical trails.

There are no trail shoes with a pronation-support system. Such system is counterproductive on an uneven trail and can cause problems and injuries. I am running Adrenaline and Glycerine GTS as my road shoes and have x-bionic, dynafit and saucony Peregrines as my trail running shoes. X-bionic and dynafit are relatively stable, I use a special insole in Peregrines (not from orthopedics)

The Dynafit Trail, light, stable great grip and versatile cushioning! [https://www.dynafit.com/it-it/scarpa-trail-running-da-uomo-08-0000064111](https://www.dynafit.com/it-it/scarpa-trail-running-da-uomo-08-0000064111)

From my experience shoes that worked best on such terrain are Salomon Genesis and La Sportiva Mutant. Other La Sportiva shoes should do well because they are generally targeted for mountain running. Also, from my experience, Dynafit shoes are well suited for mountain running. Finally, if you want to see a selection of shoes and gear in general that is targeted towards mountain running take a look at Skyrun store (https://skyrun.skimo.co/). This is a real physical store in Utah. I ordered from them several times without any issues.