Anthony O.wrote a review of La Sportiva Mutant Running Shoe - Men's on August 19, 2017
these shoes are awesome in muddy, soft ground scenarios or scree. as mentioned they arent terribly grippy on dry rock like a climbing shoe but thats not what these shoes are for, get a bushido for that. so the person who reviewed these as an approach shoe doesnt understand what these are made for. that being said, they rule at what they are made for, with lugs like these, these are made for eating wet or loose trails.
NOTE: sizing is waaay off for me. i wear an 11-11.5 is most things or depending on brand 45 or 45.5. approach shoes i sz 44-44.5 even within the la sportiva brand.
i owned a pr of these in a 45, did an approximate 40 mile round trip approach to glacier peak in washington out of the box. they did wonderfully on the way up, but on the down the toe rub on my big toe and pinky was unbearable. depending on width i believe these shoes run a half sz to a full sz small. i repurchased a sz 12.5 or 46 and have fallen in love. an excellent shoe. BURLY but also for me runs more naturally than the 10mm drop would suggest. i also run in the salomon sense series and have run in the bushidos and helios 2.0 and sr. these hold my foot better than bushidos, which i believe is because of the lacing system which wraps the foot very well. i prefer the salomon sense normal and sg for most running, but for full days in mixed terrain, fastpacking, super nasty trails these things tear it up.
a real treat would be the bushido sole with mutant upper...and more predictable sizing.