Wool reinforcement on heel, Achilles tendon and toe; as well as protecting, it helps regulate foot temperature Skarpetki Poly Mid CMP - grey - Kup w Netball Socks CMP Trekking Sock Poly Mid - Walking Socks | Product Review Hiking Socks CMP Trekking Poly Mid Anthracite Socks are an excellent choice for those seeking comfort and durability during hikes. Made from a blend of polyester, elastane, polyamide, and merino wool, they provide an optimal balance between elasticity and thermal regulation An absolute all-rounder with optimal comfort. Skarpety turystyczne CMP Trekking Sock Poly Mid - b.blue/verde fluo Thanks to the combination of ventilation channels and stability zones, this sock is particularly suitable for running, jogging, hiking and trail running.