Paradise Silk 85% Silk 15% Cashmere Knit Men Thermal Long Johns Set Made from 85% mulberry silk and 15% cashmere Cold weather, warm but low-impact to activities Natural silk blend fabric wicks moisture away from the body and keep sensitive skin protectet Flatlock seams to avoid irritation Hand Wash preferred,Machine wash cold, gentle cycle, No Alkline,No bleach, Dry flat