Softshell with a membrane.
The material is not very flexible, just light.
Size S - chest circumference 86 cm, waist 85 cm and hips 96 cm. Vest length measured at the back of the neck 63 cm.
Size M - chest girth 82 cm, waist 90 cm, hips 100 cm. Waistcoat length measured from neck to neck 65 cm.