How to size

MENS' SMOOTH BIKER VEST
SIZE	S	M	L	XL	XXL
CHEST	36	38	42	44	46

STREET FLYER HAT (UNISEX)
SIZE	XS	S	M	L	XL
	19	20	21	22	23

WOMENS' LEATHER VEST
SIZE	XS	S	M	L	XL
CHEST	30	32	34	36	38
BACK LENGTH	12.5	12.5	13.5	13.5	14