100% silk neck warmer with heat generation effect. - Color: Navy x Silver - Material: 100% Silk - Size: Free size - Features: Heat generation effect, increases temperature by 4.8°C - Made in Japan - Retail price: ¥4,950 Thank you for viewing. The color preference has changed, so it is unused. There is some distortion on the outer packaging from being stored in a chest of drawers (photo No. 5). Please understand that this item has been stored at home.