Japanese warmth generation fabric helps retain your body's natural heat. Wash before wear, Warm delicate machine, wash with like colours. DO NOT bleach, DO NOT tumble dry and DO NOT dry clean. Warm iron inside out. This garment moulds to your body, providing ultimate comfort. Keeping you warm, without any bulk,Innovative fabric that helps retain your body heat. Extra fine, super soft, lightweight fabric. Super stylish on its own or great for layering. Material Composition; 66% Acrylic, 29% Viscose, 5% Elastane.