BluWater Polarized 1 Floating Smoke Lenses with Neoprene Foam (Matte Black, Small) Lightweight frame design and neoprene foam keep the glass from sinking if dropped in the water Floating glasses eliminate the problem of glasses being lost to the tide Anti-Scratch Coating and flexibe tips. Polarized lenses provide UV 400 filter of the lens provides maximum UV protection Full frame and Neopreme Foam Padding