More Details Persol "PO3173S" pilot sunglasses in tortoiseshell. Eye/bridge/temple (mm): 54-19-145. Square acetate frames. Shiny golden metal brow bar. Meflecto hinge at sides to ease temple pressure. Universal fit. 100% UV protection. All Persol eyewear is handmade in Italy since 1917 with the highest quality materials and technology.