This hooded neck warmer uses X Shelter insulation and provides a heat retention effect of approximately +20°C or more. - Color: Black - Material: X Shelter insulation - Heat Retention: Energy accumulation effect of approximately +20°C or more No restock, sold out item X Shelter Insulation β Hood Warmer - Black - Free Size Brand new, unused Will be taken out of the included bag, spread out thinly, and shipped. (The included bag will also be included.)