Ooh-La-la! My YSL Rive Gauche creamy, light buttery color blouse is double-breasted with black faceted buttons. From the late 70s-early80s, it's classic YSL cut and fit. It has kind of funky tissue papery shoulder pads inside that you can either keep or replace. It has been stored in my cedar closet over the years and it's in excellent condition structurally except for some discolorations inside the collar (can't be seen when you wear it) and a light, almost imperceptible spots on the back (see last two photos); should easily come out with dry cleaning, but for this reason, I've slashed the price on it Viscose! Viscose/Acetate blend. This is a versatile vintage piece that can be worn year round; wear it tucked in or untucked for a chic, Parisian look. Tag size is a French 36, but see approximate measurement (taken across, laying flat) for a proper fit: Sleeve length 24" Shoulder to Front hem 25" Armpit to armpit 19"