The Kiefer Sprinter Anti Fog Swim Goggle is a great all-purpose goggle. It can be used for competitive, lap or recreational swimming. The no-leak poly gasket with molded rubber eyecup offers a truly close fit. The thick adjustable head strap and shatter-resistant lens make these swim goggles both comfortable and durable. Blue. Kiefer - The First Name in U.S. Swimming since 1947.