Are the lenses polarized?

No. The brown lenses are non-polarized, so they block UV but do not cut glare from water, snow or wet roads.

What face shape suits a square frame like this?

Square and rectangular frames balance round and oval faces. On very narrow or small faces the wide frame can look oversized.

Saint Laurent eyewear normally ships with a branded case and cleaning cloth. Confirm the contents with the seller before ordering.

It is one of the wider, more angular shapes in the line. Slimmer models suit smaller faces; this one is the bolder statement.

Many opticians can fit prescription lenses into acetate frames of this type. Ask your optician before buying.

At Lyst, for $139.99, 30% under what the other stores charge, as of our latest check.

13 stores we checked sell it, including Bluefly, Lord & Taylor, Ashford.com, EZContacts.com, Overstock.

$139.99at LystChecked Oct 31

30% under what the other stores charge

Compared across 13 stores. Prices are checked against each store and labelled with when.