Burtle Hot Fitted 4091 Black, Size S, New, Unused I opened it once and spread it out, but it has not been worn. Please purchase only if you understand this. We ask for transactions with no claims and no returns. An underlayer hot gear series that excels in heat retention and stretch material to comfortably support winter work scenes. 4-way stretch knit material that maintains a comfortable fit. The brushed back material promises a warm and comfortable feel. Equipped with deodorant tape and antistatic care yarn to support comfortable wear. Sweat-wicking and quick-drying processing for a dry wearing experience. Flat lock stitching with no friction that supports active movement. Suitable for both men and women to wear.