The Diamond Jim is perfect for rocking a little fashion but staying true to your style. WOW (wool on wool) technology in the shins and soles adds cushioning in these potentially sensitive areas. Strategic mesh zones for maximum ventilation. SmartWool Fit System with arch and ankle support. Color contrasting stripes for added detail. 69% Merino(R) wool, 29% nylon, 2% elastane. Machine wash cold, tumble dry low.