3PACK mens boxers CR7 Mens boxers CR7 are made of BIO cotton and elastane, have sports rubber and longer pants.Boxers are packed in the original CR7 packaging. We recommend washing at 40 ? C - Rubber - woven - Panties - longer - Material - cotton - Composition - 95% BIO cotton, 5% elastane - Wash - 40 ? C - Dryer - yes - Ironing - yes.