Rock is our Hi-Speed Sock for Rugged Terrain. Specifically for Long Hauls & Heavy Loads, holds its shape through high mileage days, and provides energizing support of muscles. High Loft resilient cushion in specific strike zones help eliminate bruising of foot bottom from rugged territory. Silver Lining™ fights bacteria all day, every day. Go covert. Content: 42% Combed Cotton, 19% Coolmax, 19% Acrylic, 2.5% Silver Lining®, 12.5% Nylon/Lycra, 5% Nylon
Top = Welt construction for non-binding fit.
Body = Graduated Support in leg of Sock for all Day Energizing support of muscles. Looser at the top and snugger fit at ankle. Helps promote circulation up the leg from foot.