I love the shoes! They are super comfortable to run in and they have amazing grip! The only issue is that they run extremely small. I normally wear a size 7 and had to order a size 8.5 for them to fit correctly.

Looking forward to try them out on the Montana Spartan Beast👍

I have the MAXx and thought I'd give these a try. I was a bit concerned from all I had read about them being a bit narrow. I went up a half size (as I did with the MAXx) and I cannot tell you how comfortable these shoes are... In fact as I was walking out of the Vegas Sprint last weekend I had that exact thought! Unbelievably comfortable, killer grip (duh) and they just performed perfectly. Highly recommend!

For starters, these are incredibly comfortable. The lower profile makes them feel like they are part of my feet. But the best part? The grip is INSANE. I live in central New York and am able to hit snowy trails with such ease. Even the crunchy, icy patches are no match for these. They make me wish the trails were snowy all year.

I ran an extremely muddy Spartan course, and the iRocks were phenomenal. The grip was reliable, the lugs helped propel me through the bogs and they helped me onto the podium.