Master the most challenging trekking tours with confidence, and rely on the pleasant cooling effect of the X-SOCKS® TREK X LINEN WOMEN on sunny days. This product from the X-BIONIC 4.0 model generation will convince you that outstanding technologies can be further improved. The high linen content in the fabric enhances durability and provides a natural climate control effect. The optimally shaped Air-Conditioning Channel® 4.0 promotes temperature regulation with targeted ventilation along the sole of the foot. The protective functions for toes, instep, and ankle are now complemented by the Lambertz-Nicholson Achilles tendon protector 4.0 with its newly designed padding zones.