Women's Classic T-shirt: The answers are the ancestors

Size (cm)	XS	S	M	L	XL	2XL
Width	43	46	49	52	55	58
Height	60	62	64	66	68	70

Size (inch)	XS	S	M	L	XL	2XL
Width	17	18	19.3	20.5	21.6	22.8
Height	23.6	24.4	25.2	26	26.7	27.5

To get good measurements, lay the shirt (preferably the one you love) on a flat, hard surface, then if there are any creases, smooth them out as much as possible

Width: place the ruler from the bottom of the sleeve and measure the width stopping under the other sleeve.

Height: measure from the highest point of the shoulder (top of the collar) to the bottom of the shirt.