Design: Sock Height: Mid Crew Mesh zones for added breathability Technology: Indestructawool(TM) Technology with extended durability zones 4 Degree(TM) Elite Fit System for a dialed-in, performance-oriented fit Shred Shield(TM) Technology reduces wear from toes Virtually Seamless(TM) toe for enhanced comfort Additional Details: Machine Wash Warm, Inside Out, Do Not Dry Clean, Do Not Iron, Tumble Dry Low, Do Not Bleach