You get a decent pair of sun glasses for what you pay for here.  The glasses are light and sit close to your face and eyes.  This makes them great if you run on a windy day but they will fog up a bit if the humidity is up a little.  They seem very sturdy but the shade they provide is a little darker than I am used to, so you might not feel comfortable wearing them inside or if you happen to drive through a tunnel with them on.