Ebay offers Lacoste Men's Foldable Sunglasses for $36.99 (reg $179.99) with free shipping.

Product Description:
The first foldable style of the collection, the L778S is unmistakably Lacoste, with the iconic pvc croc on both temples and an original detail: the Lacoste logo engraved on the internal metal bridge. Made of injected plastic in a soft-square style, these frames can fold at several frame joints until it can fit into one’s pocket. Polycarbonate lenses ensure impact resistant lenses that offer 100% UVA/UVB protection from the sun’s rays. The L778S is Rx-able.

• Guaranteed brand new and authentic
• Includes storage case (style may vary)
• Lens Width: 52mm
• Bridge Width: 20mm
• Temple Length: 140mm