Features:This Thermal Long Johns is made of high-quality modal fabric, which is very skin-friendly, highly elastic and breathable. It is very suitable for daily wear or as pajamas when sleeping, and fits the legs tightly. This thermal underwear can provide warmth while also being well hidden inside pants.Specification:Color: Blue, Black, Dark Blue, Dark GreySize: S, M, L, XL, 2XLMaterial: 91%-95% ModalSize Type: RegularThickness: RegularStyle: Casual, SportWaist Type: Mid-riseSeason: Spring, Autumn