With the super lightweight X-SOCKS® SKY RUN TWO WOMEN, you will conquer any obstacle and reach a new level of performance in demanding trail and mountain runs. Wearers of X-BIONIC® women's socks are already familiar with the Narrow Arrow construction and the 3-ExpandLadiesStripes, which are optimized for the female foot. You can also rely on the perfect fit of the new generation X-BIONIC 4.0, which does not create folds and thus prevents chafing. You will enjoy the proven X-BIONIC® comfort with the extra breathable Mythlan® mesh knit on the instep and the odor-reducing Sinofit® footbed. The newly designed Air-Conditioning Channel® 4.0, with its narrowing air channel, ventilates the sole of the foot even more effectively. Additionally, the optimized shape of the Lambertz-Nicholson Achilles tendon protector 4.0 offers improved protection against friction in the sensitive area above the heel.