This is a lightweight and highly insulated base layer made with a lining of cashmere-brushed, silk-blend material. The shirt portion has a metal reflective coating on part of the lining. This is a prototype product made with the highest quality fabric for a cold-weather base layer. It is stretchy and the lining is cashmere-brushed. The silk blend provides a smooth feel against the skin. The pants have a fly opening, making them convenient for wearing outside. Size: M (slightly large for a wool size) Shirt Front Length: 63 cm Body Width: 48 cm Sleeve Length: 62 cm Pants Total Length: 101 cm Inseam: 72 cm Waist (flat): 33-46 cm