Siren Harness Spec & Care Composition: Main: 95% Polyester, 5% Elastane with Polyurethane coating. Elastic: 82%, Nylon, 18% Elastane (excluding trims). Country of origin: China Care: To clean wipe with a damp cloth, do not machine wash, do not bleach, do not tumble dry, do not iron, do not dry clean.