Easily clear every hurdle on demanding trekking tours with the X-SOCKS® TREK X CTN and put your trust in more than ten patented technologies in the X-BIONIC 4.0 model generation. Expressly designed for the male foot, this special hiking sock provides maximal wearing comfort and proves that even outstanding quality can be improved through continuous innovation. 30% Tropic Cotton is knit into the highly functional material. The exceptionally absorbent, tear-resistant and skin-friendly yarn reduces the risk of allergic reaction, conforms elastically to the shape of the foot and is hard-wearing, durable and easy to care for. The remarkable feel-good effect guarantees protection and increases your stamina. The shape-optimized Air-Conditioning Channel® 4.0 upholds the climate balance and the improved Lambertz-Nicholson Achilles Tendon Protector 4.0 protects against pressure and friction.