These comfy socks are an essential all year round our freshfeet technology keep feet fresh by combating the bacteria that cause odours style fitankle plan a cotton added stretch freshfeet with silver technology care and composition composition socks 1 3 5 82 cotton 17 polyamide and 1 elastane socks 2 4 77cotton 22 polyamide and 1 elastane care instructions machine washable tumble dry keep away from fire and flames