FUNCTION : Competition - Designed for swimmers with a serious need for speed. FEEL : Rigid: Hard frame creates watertight seal. FIT : Low: Low profile keeps the goggle close to the face. FILTER : Clear: Provides crisp, clear vision indoors and out. Mirrored: Maximum visibility, minimum glare; ideal for outdoor use. FIELD OF VIEW : Standard: Expanded side view lets you keep an eye on the competition.