Mammut produce boots with soles that (AND I QUOTE THE COMPANY REPRESENTATIVE) ´begin to decompose after a few years. No matter how often the shoes were used. This damage is caused by the age and therefore not a warranty issue.´ If I could attach pictures here I would to show that the Mammut boots I have used maybe 3 weeks of hiking altogether and paid a lot for, became totally obsolete forcing me to buy a new pair, obviously not Mammut any more. I advise against buying Mammut.
This review was written in the old system and had content requirements that are different than reviews written today.