The Concept trousers are extremely lightweight yet durable. In the usual Pfanner manner, it offers maximum breathability and freedom of movement thanks to the StretchAIR technology. That is why the Concept is particularly suitable for extensive hiking and climbing tours. The Kevlar reinforcement at the ankle insides protect the trousers from wear. The innovative design of the belt loops for these trousers ensures an even seat while you are wearing a belt.