Persol PO3316S Round Sunglasses combine classic round lines with Persol’s signature comfort features for all-day wear. Ideal for city and leisure use, they pair a refined acetate frame with reliable sun protection. Key attributes: Blue | Acetate | UV protection | Meflecto flexible temple system for improved comfort and fit | Monogram engraving option on temple arrow | Round frame | Keyhole bridge | Slim temples | Signature metal arrow detail | Dimensions & fit: Lens width: 54 mm | Bridge width: 21 mm | Temple length: 145 mm | Lens height: 26 mm | One size (54-21) | Best for most faces | Composition & care: Acetate | Wipe lenses with a soft cloth; do not place eyewear face down. Hold by the temples when putting on or removing. Use original replacement parts and seek professional repairs; do not attempt DIY fixes.