In addition, it has extra reinforcement in the shaft area to avoid possible rubbing and friction and, also, a reinforcement in the heel to provide you with greater adaptability and protection. Made without seams around its perimeter and with a closed point-to-point toe and, in turn, it is an asymmetric model. It also has areas of greater breathability in the points of greatest sweating. Designed with Bmax Merino technology in charge of combating the main causes of blisters such as overheating, humidity and friction. Developed with the ESP 2 structure, greater durability, cushioning and protection. And, supported by the Silver base Layer grid developed with high antibacterial power.