Oakley Vault offers the Oakley Flak Jacket Sunglasses in Red/Grey, model no. 42-261, for $69.99 plus $3.91 for shipping. That's the lowest total price we could find by $65 and the best price we've seen for these sunglasses. They feature a water-repellant lens coating, 100% UVA/UVB/UVC protection, and more.