Just-right midsize sunnies; Dark-to-light tint blocks overhead rays and increases ground visibility; Constructed with a special grip-coated frame to eliminate slippage when sweating; Snug, lightweight frame with a comfortable fit that prevents bouncing while you crush your workout; Glare-reducing, polarized lenses with UV400 protection block 100% of harmful UVA and UVB rays; Classic frame shape with timeless appeal that will always be in style