The GoRun Ultra was inspired by Ultra runner Robert Youngren, here you can read his blog and how Ultra was designed: http://youngrenepics.blogspot.com/2013/11/skechers-gorun-ultra-from-drawing-board.html
To break it down
Midsole/Out sole unit:
Ultra use a combination of a soft Resalyte midsole and more rigid Resagrip outsole to provide cushioning and support. Information from Robert Youngren blog:
Forefoot = 23.0 mm
Midfoot = 29.0 mm
Heel = 27.0 mm
Net Drop = 4.0mm
Sockliner = 3-7 mm (tapers from 7mm at heel to 3mm at forefoot)
Outsole offers a pattern of medium sized lugs, shaped as triangles almost. Although I have not tried the Ultras on the trails, I have tried them on pretty rough, slushy winter condition roads. And the runs have been safe and secured. Truly I feel this works as well as a road shoes as it does on the trails. The cushioning is very well present, although I enjoy a road feel shoe, I have actully found the cushioning being pleasant the day after a hard work out when your legs are beat up.
The upper is very roomy. I have no problems getting a extra thick sock in them on a very cold day. In the front, the mesh is a bit stretchy, for toe display and a tighter mesh in the arch area to secure the fit. A couple of overlays add to the structure of the upper. Nothing to fancy, just simple functional design. The roomy upper is probably very useful if you're are planning to go the Ultra distance where your feet gets pretty swollen and beat up.
As with all maximum cushioned shoes, you get a good stack height. You would think that the shoe therefor have sacrifice the energy return and the "pop" feeling. Ultra does not. I was pleasantly surprised how "fast" they actually felt and how flexible they are. They offer you ton of protection at the same time. I have heard from other runners who had used Ultra and rolled their ankles. This has not been an issue for me.
Sum up :
Im not a trail runner and Im not an Ultra runner, still I found a great place in my running shoe rotation for the Ultras! With a simple roomy upper, and a well cushioned ride the Ultras has given me great protection from Mother Winter nature. The stack height has given me good protection from the slushy wintery roads and the roomy upper has allowed me to add a thicker socks
Out sole lug pattern has protected me from sliding around and I have been able to focus on the running. I really like how I can pick up paces whenever I want without feeling the shoe is in the way.
Even if you're not an Ultra runner, you can find a place for Ultra in your rotation. Its a great versatile shoe that works for many purposes, you just have to explore the shoe and find your way!
Disclosure of Material Connection: I receive Running shoes from Skechers Performance Division as part of their Skecher Performance Division brand ambassador program. I was not required to write a positive review. The opinions I have expressed are my own. I am disclosing this in accordance with the Federal Trade Commission’s 16 CFR, Part 255: “Guides Concerning the Use of Endorsements and Testimonials in Advertising.”