These trainer liners are designed to hide neatly inside your trainers style sustainable cotton added stretch care and composition composition pair 1 and 3 76 cotton 22 polyamide and 2 elastane lycra pair 2 73 cotton 24 polyamide and 3 elastane lycra pair 4 77 cotton 20 polyamide and 3 elastane lycra pair 5 81 cotton 17 polyamide and 2 elastane lycra care instructions machine washable tumble dry