Wacoal Warm Slip Winterm (Slip with Sleeves) Worn about twice. There are some areas with pulls and some pilling, so please consider this item only if you understand that it is used. - Product Number: SRB300 - Size: M-85 ● Warm without bulk The upper part of the body is made of ultra-fine micro-acrylic, a thin and light material. ● Gentle on the skin at the underarm seams The underarm seams are finished flat, so they are less likely to bunch up and are gentle on the skin. Thank you.