Costa Del Mar Skimmer Polarized Sport Sunglasses 580P Tortoise Gray plastic frame plastic lens polarized Polarized to eliminate glare UV blocking: 100% UVA,100% UVB Costa 580P polycarbonate lenses offer unparalleled clarity and block harsh yellow light for sharper contrast, better definition and enhanced colors Lightweight, durable nylon frame Megol nose pads and temple tips prevent slippage