This has to be the worst thing that you could do to your expensive climbing shoes. I followed the video instructions invodo.com and he had it totally smooth and good. I don't know how he is able to do that because mine is all clumpy and messy. I also had to apply twice (4 teaspoons) because it wasn't enough to cover the surface area of my one shoe. I applied it to my right foot and needless to say I won't do it to my left. I just hope I will be doing a bunch of slab climbs and not finger cracks until these shoes die.

Now that I think of it, my mocs blow out at the bottom at the same time it does on top, so it makes no sense to apply the rubber on top to increase the lifetime because when the bottom blows you can't wear them anymore.

PS. I also wish that five ten would go the extra step and come up with a better solution, like a pre-mixed rubber liquid that dries.

PPS. Wow, now the mocs are stiff at the top, totally kills the comfort. Someone shoot me.

These shoes suck.

I wore them specifically for trad (crack climbing). After a few months of moderate use (I'd say 4-5 months), there is a big hole on the toe area. On the other shoe, some rubber near the heel area is starting to peel off. So they are not durable.

As for the fit. I really wanted a pair of shoes that was comfortable yet able to provide me with protection when foot jamming. I also wanted shoes that could edge when need to. These were ok to protect the feet from the horrible pain, and they are pretty flat so you could stick these into a thin crack, but they are horrible at edging and smearing. I have only fallen while wearing these shoes, never my other pair.

Getting the right size was also a pain. These stretch so you need to get the smallest possible. I think I went 3 sizes down and I could probably go a few more.