The Litepeak PRO GTX adapts perfectly to the foot thanks to the lacing that is pulled far forward and the variofix system integrated in the heel area. The free-running ""Speedwire"" pulls evenly close to the heel when lacing up - so a good hold is guaranteed. The model is suitable for ambitious trekking, because an integrated heel spoiler allows you to attach a light iron to it and at the same time the heel spoiler is designed so that an economical and natural step and roll is possible. The Alpin Rigid rubber tread sole from Vibram ensures sure-footedness even off the beaten track, and the GORE-TEX membrane guarantees that your feet are waterproof while remaining breathable.