Made especially for hikers and other walkers with sensitive legs these medium volume falkersquos tk2 trekking socks have sensitive non restricting tops with silicone nubs inside for a slip resistant fit without tightnessthe ergonomic design of these socks with a perfect leftright specific fit and task targeted cushioning at the seam free toe box ball and heelstress zones are reinforced for durable wear and the socks made with virgin wool are air channelled for effective thermo regul