During this Sunday Somewhere sale you can get $100 off selected sunnies, there's no code, prices are as marked. In the category there are 80 styles, which start from $99. Shipping is only free on orders over $250.
The best price I could find looking at SurfStitch, The Iconic and Just Sunnies was $120, and besides two pairs all others are over $150 vs. at Sunday Somewhere who's prices are below that threshold on most sunnies featured in this category.
Sale ends on the 23rd of March.