Smartwool Men's Barber Pole Sock Taupe Heather New 4 Degree Elite Fit System uses two elastics for greater stretch and recovery to keep the sock in place Patent pending ReliaWool Technology in high impact areas provides the longer lasting protection to keep feet comfortable Strategically placed mesh ventilation zones provide ventilation for temperature and moisture management Low profile and durable virtually seamless toe Alternating 1x1 welt