REI Garage offers the Tifosi Unisex Escalate H.S. Fototec Sunglasses with Interchangeable Lenses for $44.73. Opt for in-store pickup to dodge the $5.99 shipping charge. (You can also pad your order over $50 to receive free shipping.) That's the lowest price we could find by $71. They feature 100% UV protection, hydrophilic rubber ear and nose pieces.