These comfy socks are an essential all year round our freshfeet technology keep feet fresh by combating the bacteria that cause odours style freshfeet with silver technology plan a cotton added stretch care and composition composition pair 1 3 and 5 75 cotton 24 polyamide and 1 elastanenpair 2 4 67 cotton 32 polyamide and 1 elastane care instructions machine washable tumble dry keep away from fire and flames