Sisu is the Finnish for bravery, strength and fortitude. Make like a hardy Finn this winter and get out out there, rail, hail, snow or ice. Perfect for keeping you warm this winter. The Sisu of Finland sock provides you with the warmth your feet need to get you through the cold Arctic night. A little bit higher than calf-length with a folded-over ribbed cuff and with a reinforced cushioned heel and toe this pair of socks feel as good as they look. The socks fit as welly socks and they also would serve you well if you found yourself hiking in the cold. 51% Cotton, 30% Wool, 18% Polyamide, 1% Elastane