Contents: Footie: 81.5% Certified Organic Cotton, 16.9% Nylon, 1.6% Spandex

Cotton Crew: 86% Certified Organic Cotton, 13% Nylon, 1% Spandex

Wool Crew: 82% Certified Organic Wool, 14% Nylon, 4% Elastic

Washing Instructions: Cotton: Machine Wash Warm, Tumble Dry Low

Wool: Machine Wash Cold, Line Dry