Saeko Goggles, S42UV Vision Mirror Series Swim Goggle with Anti-Fog and UV Protection Coated Mirror Lenses for Swimmer. Newly Patented quickFIT for an Easily Adjustable Strap(Clear) FINA approved for international competition Mirrored Low profile lens reduces water resistance without giving up comfort or protection Ultra Anti-FOG keeps fog-free and provide longer usage UltraFAST Buckle, side buckle system makes the strap adjustment easier and quicker UV Protection reflects harmful rays from sunlight