Bouclé is a yarn with a deliberate loop spun into it, and knit into a polo it does something interesting: the surface picks up texture and depth the way a tweed does, while the garment itself stays light enough for summer evenings. This is less a polo than a fine short-sleeve sweater with a collar.
That texture is what makes it the piece in this delivery to wear when the invitation is vague about dress code. It carries a jacket beautifully, and on its own it reads finished in a way a flat knit never quite does.
Cut slim. Size up if you prefer ease through the chest.