Victoria wrote a review of Mad Rock M5 Climbing Shoe on February 23, 2014
Familiarity: I've put it through the wringer
Fit: True to size
The M5s fit true to size and don't stretch much, they should fit well out of the box. Great for long climbing sessions when you don't want to take your shoes off after every climb. The rubber is stiff and durable, I've been climbing in my M5s regularly for 2+ months and they aren't worn out at all. The toe box and heel both fit great and perform well while smearing and stemming on nothing. I also climb in the Sharks and the one time I prefer my Sharks over the M5s is when trying to heel hook on very small holds. The extra rubber on the Sharks makes it possible to heel hook on crimps and edges, whereas the M5 heel works better on larger holds or just hooking against the wall.