Made with 100% silk jersey material, which has an elegant and refined luster. [Pajamas (long sleeve, long pants)] ・Because it is a very fine natural fiber, it has a smooth feel, fits well, and has a soft touch against the skin. ・It has excellent moisture absorption and release properties, so it is not stuffy, and is comfortable and refreshing, making it a recommended item throughout the season. Wacoal Suimin Kagaku (Sleep Science) Pajamas Loungewear Silk