PhD:Built for Performance in the Highest Degree
4 Degree? Elite Fit System:Uses two elastics for greater stretch and recovery to keep the sock in place
ReliaWool:Patented ReliaWool? technology in high impact areas provides superior durability
Light Cushion:The ideal cushion for varied trail and road terrain
Machine Wash Warm Gentle Cycle. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.