PO3019S Sunglasses by Persol. The square shape design features a full rim plastic frame. This model is available in fourteen different color combinations and sizes. Persol is one of the oldest and most iconic eyewear brands. It is instantly recognizable for its arrow logo, which reflects the tenacity of the company founder Giuseppe Ratti. Experimenting with innovative materials, the company has developed products with unique characteristics. Every detail of Persol accessories is handcrafted using the highest quality materials. Persol was one of the first to make glasses from cellulose acetate. Due to the naturalness and hypoallergenic properties of this material, the brand’s glasses do not irritate the skin and contribute to maximum comfort.