Aertis is there to make it easier and better. The nylon sole with a replaceable rubber insert allows for maximum grip in any situation and increased walking comfort. - Ultra-lightweight Politex membrane construction eliminates foot fatigue - Anatomical heel construction provides stabilization and control without the extra weight - Integrated impact protectors deliver protection without any burden on the toes - Firmor lateral support delivers all the stability the rider needs - Dyneema dialing system is crafted from high-density resin - MTB Nylon Sole is designed for the trails - Rubber inserts on the sole offer unbeatable stability on the toughest terrains - Sole inserts are engineered for durability