- Adjustable Nose Pads- Spring Hinge

Coverage: Excellent retention

- High-stretch fibers create complete recovery fabric

Castaway life preserver button closure

- 100% cotton interlock

Brine Tortoise Shell Sunglasses with Blue Mirror 400G Lenses by Costa Del Mar Gameday Harvard University - Adjustable Nose Pads- SpringBlue Mirror 400 Glass Lens. Comfortable large fit. Integral hinge. Heavy duty TR 90 nylon frame. Includes hard case. 100% UV light blockage for max protection. 100% polarization kills reflected glare and reduces eye strain. Built by hand and backed for life. Every pair of Costas include a lifetime warranty. Plastic lenses are lightweight, impact and scratch resistant. Glass lenses have the greatest clarity and are scratch resistant.