Costa Del Mar Sunglasses. Series MAINSAIL XL. Series number - 6S9131. Color code - 913104. Shape - Square. Lens Width - 59 mm. Lens Height - 47 mm. Lens Bridge - 18 mm. Arm Length - 146 mm. 100% UV protection. Polarized. Frame Material - Bio Resin. Frame Color - Matte Black. Lenses Type - Sunrise Silver Mirror Polarized Glass. Rim Style - Full-Rim. UPC/EAN code - 198537009303. Costa Del Mar MAINSAIL XL Sunrise Silver Mirror Polarized Glass Square Men's Sunglasses 6S9131 913104 59. Manufacturer's Packaging Included. Packaging Size And Color May Vary.