Product Dimensions: 30.48 x 25.4 x 2.54 cm; 295 Grams Date First Available: 25 Jan. 2019 Manufacturer: Fashion Silk ASIN: B07N3ZSFNT Department: Men"s NATURAL: Silk long underwear is made of pure murberry silk knit fabric,Silk is one of the best underwear fabrics HEALTHY: Silk help skin health,antistatic of silk long johns,take care of your body COMFORTABLE: Supersoft,Lightweigh,smoothly,hygroscopicity,breathable of silk thermal underwear FITSIZE: To ensure the silk base layer comfortable fit,please be sure to refer to the size details(in Product Description) WASHING: Recommend hand washing ,neutral detergent, low temperature drying or shade drying