Costa Del Mar Sunglasses. Series Mainsail. Series number - 6S9107. Color code - 910705. Shape - Square. Lens Width - 55 mm. Lens Bridge - 18 mm. Arm Length - 136 mm. 100% UV protection. Polarized. Frame Material - Bio Resin. Frame Color - Grey Crystal. Lenses Type - Blue Mirror Polarized Polycarbonate. Rim Style - Full-Rim. UPC/EAN code - 097963957014. Costa Del Mar Mainsail Blue Mirror Polarized Polycarbonate Men's Sunglasses 6S9107 910705 55.All Costa Del Mar Eyewear may include Case/Pouch and may include a polishing cloth. Case size and color may vary.