Campmor offers the Bollé Men's Polarized Flip Sunglasses
in Black (pictured) for $49.97
for shipping. That's $40 off and among the best prices we've seen for Bollé polarized sunglasses. They feature a nylon frame, polycarbonate lenses with 100% UVA / UVB protection, carry pouch, and more.
Of note, search for "32504" to find the Bollé Men's Flip Sunglasses for $39.97 plus $6.99 for shipping. That's tied with our July mention of these glasses and the lowest we could find. These are similar to the sunglasses above; however, they are not polarized.