6pm offers the Oakley Unisex Dispute Rectangular Sunglasses in Black for $54.99 with free shipping. That's a buck under our January mention and the lowest total price we could find by $85. They feature 100% UV protection.
Groupon offers the Ray-Ban Tech Unisex Carbon Fiber Sunglasses in Grey/Green, Brown, or Silver/Grey, model no. RB8303, for $109.99 with free shipping. That's the lowest total price we could find by $10. They feature 61mm polarized lenses.