These trainer liners are designed to hide neatly inside your trainers style sustainable cotton added stretch care and composition composition pair 1 77 cotton 18 polyamide 3 acrylic and 2 elastane pair 2 76 cotton 21 polyamide 2 acrylic and 1 elastane pair 3 78 cotton 21 polyamide and 1 elastane pair 4 77 cotton 20 polyamide 2 acrylic and 1 elastane pair 5 62 cotton 20 polyamide 17 acrylic and 1 elastane care instructions machine washable tumble dry