EFFECTS AND ADVANTAGESProtects against calluses, blisters and claw toes or hammer. No bulge within the shoe. Trimmable tube 15 cm.COMPOSITION EXTÉRIEUR: 70% nylon, 30% lycra elastic. INTÉRIEUR: 100% gel pur MAINTENANCE Rinse with cold water, soap and air dry. Do not expose them to direct alue. Store in a cool, dry place, protected from sunlight. Once dry, before use, we recommend lightly sprinkle with unscented talcum powder inside. Do not iron and do not twist.