For $11.99 their the best.
I bought a pair last year. They will get the job done under tough conditions. Sand won't blind your eyes. Excellent product for the $$$.
I have a pair of these SWDGs, they are great if you need something to stop BBs etc... they get alittle fogged up though if you live in an area as humid as Florida.
What you see is what you get. Nothing fancy, just what you need at a good price.